Slope of Tangent Line Derivative at a Point Calculus 1 AB

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  • Опубликовано: 13 дек 2024

Комментарии • 294

  • @justinsmith2678
    @justinsmith2678 8 лет назад +51

    this dude saves lives.

    • @profrobbob
      @profrobbob  8 лет назад +18

      +Justin Smith ...one math student at a time...BAM!!!

  • @profrobbob
    @profrobbob  11 лет назад

    Thank you so much for such a glowing review and being such a loyal subscriber! I love teaching through RUclips and hearing from so many appreciative viewers like yourself. I never dreamed less than 2 years ago, that I would still be doing this. The continued appreciation through comments, tipping the teacher and channel growth is extremely motivational...I love my classroom teaching job of 18 years but this takes it to a new dimension. Thanks for being there to support me!

  • @VexGraphicDesigns
    @VexGraphicDesigns 10 лет назад +20

    Your presentation of this subject was perfect and your enthusiasm keeps the audience engaged. You are one of the best teachers I have seen and this world needs more people like you. You've just earned a subscriber.

    • @profrobbob
      @profrobbob  10 лет назад

      Vex Graphic Designs Thank you for the awesome testimonial! If all my students were like you I would surly have a "M" next to my subscriber count by now:)

    • @profrobbob
      @profrobbob  10 лет назад

      Wafi Noorulhuda Sooner than later we hope:)
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  • @leedeffebach3504
    @leedeffebach3504 10 лет назад +15

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    • @profrobbob
      @profrobbob  10 лет назад

      You're welcome a ton ***** ! THANKS for choosing #ProfRobBob to watch and learn from! Sometimes all it takes is a little extra time spent studying and maybe hearing things explained differently:)
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  • @profrobbob
    @profrobbob  12 лет назад

    It is AWESOME that you are taking it again. My Calculus play list is very new and growing. I am just about to finish introducing Reimann sums and then showing how to find definite intergalactic using some short cuts. I am refreshing my own skills in

  • @BlueKarim
    @BlueKarim 12 лет назад

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  • @profrobbob
    @profrobbob  12 лет назад

    That's amazing...CONGRATULATIONS!!! I feel proud and accomplished to share the spotlight with Khan and Patrick! Thank you for your appreciation and viewership...many long personal hours go into these videos and it's nice to hear that they are appreciated and watched, because that is the end goal..to help those who take that extra step to be helped:)

  • @profrobbob
    @profrobbob  11 лет назад

    WOW...it still amazes me that I can teach someone in Saudi Arabia from the back room of my home in Florida:)
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  • @profrobbob
    @profrobbob  12 лет назад

    I am so glad you liked my video and found it useful:) I hope you do great in your class.

  • @Kecoroe
    @Kecoroe 10 лет назад +3

    You are an angel! I love you! I am failing Calculus right now and was really bummed and even considered dropping the class because I just wasn't getting it. I will continue to watch your videos to help me through this. Hopefully I can turn things around! Thank you so much.

  • @profrobbob
    @profrobbob  12 лет назад

    You are Veeeeeeeerrrrrrry Welcome!!! I am thrilled you found my video so helpful. I hope you do great in your class and thanks for the kind words:)

  • @winnipegkevin1
    @winnipegkevin1 12 лет назад

    I failed Calc 17 years ago and have decided I want to try it again, so I am taking it by Distance Ed currently. It is tougher than I remember, especially with no real instructor or peers to help with questions. Your explanation really helped me grasp the concept of this topic. Hopefully, you will cover more of the areas I have to cover. Thanks.

  • @jessicalietzke89
    @jessicalietzke89 9 лет назад +1

    I had to watch this video twice. The first time I couldn't concentrate because your handwriting is so amazing. I love it. The second time I watched it was really helpful. Thanks!

    • @profrobbob
      @profrobbob  9 лет назад +1

      +Jessica Lietzke I love it! You're welcome and thanks for watching "TWICE" and I hope you continue to enjoy my lessons and if you do, please take the time to lie, subscribe, support the ads, like and share thru social medias and tell all your friends, class and teachers to watch and do the same to help us grow and remain free:D

  • @davidnando9499
    @davidnando9499 11 лет назад

    there are many sites that charge crazy amount of money but are not as helpful as you are. am just happy i don't have to pay to watch this video. i had B in my precal without going to class at all and now am doing the same with cal. without you this would been impossible. here at U Of Minneasota we horrible math teachers. THANK YOU SIR.

  • @profrobbob
    @profrobbob  11 лет назад

    I happy to hear that my videos have been so helpful for you:) Teaching is a tough job & the time allotted in class is not always enough to completely explain a lesson. I'm glad you took on the challenge to seek out additional help & found my channel to get that additional help from! Please help me by sharing my channel with others at your school, maybe in the student center listing "FREE MATH TUTOR!" You could even start a study group using my videos:D You could hear BAM! all over U of M!

  • @profrobbob
    @profrobbob  12 лет назад

    I am very glad I can help you through your class...at Calculus 1. Sorry to hear you are not getting much help from your teacher though. Your motivation to seek out extra help will certainly lead you to success...I am sure!

  • @FrankGixx99Motovlog
    @FrankGixx99Motovlog 7 лет назад +3

    What I liked in you the most among the rest of the people giving tutorials here in youtube is that you are fun to watch! You make discussions as if its like a game and its so easy. Unlike my teacher in Calculus, he always talk and talk so fast that I couldn't understand anymore everything he say and makes me so bored on my sit. For me you are the best teacher and I never go for other youtubers. Whenever I get depressed whether I can understand a topic in Calculus. I go directly to your channel.Thanks a lot! More power! You are a big part on many student's academic excellence specially in Math. :) :) :)

    • @profrobbob
      @profrobbob  7 лет назад +1

      THANK YOU very much for you kind words and support Frank!
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  • @profrobbob
    @profrobbob  12 лет назад

    Thank you too for choosing my channel to watch! You keep watching and I'll keep teaching...deal?!

  • @catma9695
    @catma9695 4 года назад

    i'm glad he explains his mistakes because it helps me reflect on my work to see where i went wrong during these looong distributions and cancelling values out during the equation

  • @mylobage
    @mylobage 9 лет назад +8

    Wow. What a fantastic explanation to derivatives. People like you demonstrate that extrospective intelligence is an underrated ability. Well done good sir, well done.

    • @profrobbob
      @profrobbob  9 лет назад +4

      +mylobage thanks!
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  • @MusicGameFinatic999
    @MusicGameFinatic999 8 лет назад +1

    THANK YOU SO MUCH I WAS PULLING MY HAIR OUT TRYING TO FIGURE THIS OUT. I knew it was something simple that wasnt being explained to me properly, this video helped me understand so much

    • @profrobbob
      @profrobbob  7 лет назад

      Happy to hear that I could help you keep a full head of hair!!!...lol
      Thanks for liking, learning and subbing...please tell all your friends. classmates and teachers to do the same!

  • @venuti6352
    @venuti6352 11 лет назад

    It's so much easier to follow along with this than in class, made my life so much better.

  • @profrobbob
    @profrobbob  11 лет назад

    You're welcome...and thanks for supporting by watching and subscribing!

  • @profrobbob
    @profrobbob  12 лет назад

    You're welcome!...and Thank you for creating a playlist to share!...that's the kind of help I need from everyone to help my channel grow:)...I need more students like you, helping to "spread the word":D

  • @LuisMartinez-yw1du
    @LuisMartinez-yw1du 4 года назад +1

    I love this guy, he makes math look so simple.

    • @profrobbob
      @profrobbob  4 года назад

      BAM!!!
      Thanks for watching and learning ...please share the love and this channel with everyone!!!

  • @Bloocherry1
    @Bloocherry1 9 лет назад +1

    I could cry right now. Since being assigned calculus I haven't understood any of the lessons until i found your channel. I have a lot to catch up on, but your videos make it so I finally understand something ; v ; Thank you!!!

    • @profrobbob
      @profrobbob  9 лет назад

      +Himegami11 you're welcome and don't cry...you found some help...BAM!!!
      Thanks for not giving up until you did and for choosing my channel to learn from and sub to! Please share my channel with all your friends and classmates as you remind them to like, sub and share with all their friends too:D

  • @profrobbob
    @profrobbob  11 лет назад

    I'm glad you found my channel, subscribed, and that my videos helped you save your calc grade...but remember YOU were the one that took the first step and sought out extra help!!! There is a "Tip the Teacher" button on my channel page if you feel the need to do so...but not necessary, I'm doing these videos because I love to teach and want to share my passion with students who can benefit from the extra help:)

  • @profrobbob
    @profrobbob  11 лет назад

    You're welcome. I choose to teach in full lessons and try to show a breakdown in most descriptions so you can go to that place for help otherwise that's why there is a fast-forward button:)...lol
    I'm glad you found it helpful and thank you for supporting by subscribing too!

  • @Jay-op6tt
    @Jay-op6tt 4 года назад +1

    8 years ago and he is still saving my life thx a lot

    • @profrobbob
      @profrobbob  4 года назад +2

      Now that's some real viewer loyalty...BAM!!!
      Thanks for your continued support after all these years...as you can see the only thing that has changed is my hair color and the size of my hair in my newest videos...lol
      Please like, sub and keep spreading the word about this free educational channel to help us keep growing and helping others just like YOU:)

  • @profrobbob
    @profrobbob  11 лет назад

    And thank you for liking my video...I hope this means you will be back for more learning too:)

  • @profrobbob
    @profrobbob  12 лет назад

    :D Thanks for watching my video. Glad I could make you laugh while learning a little calculus!

  • @profrobbob
    @profrobbob  11 лет назад

    Thanks for supporting by liking and subscribing! Please share with the rest of your class, sounds like they might thank you it:)

  • @TheWannabeEngineer
    @TheWannabeEngineer 11 лет назад

    WOW... haha that was a classic moment! Even on accident these videos manage to keep my attention. Thank you for the videos. I use them constantly either to refresh and sharpen my basics or to learn new stuff. It is very difficult to break down problems this way in class due to the time restraint and other variable. Your videos are a great way to understand the theory behind the equations we use. thank you for the good laugh and your passion for all of us.

  • @profrobbob
    @profrobbob  12 лет назад

    Because any number divided by itself equals 1. The numerator does not just disappear allowing the denominator to float up. Thank you very much for watching:)

  • @camrenrichards1742
    @camrenrichards1742 11 лет назад

    Wow... You are just so amazing... My math teacher butchered this unit and I checked this out, and it saved me. I got a test on this thursday and it weren't for you, I probably would have bombed it. Thanks for everything!

  • @alex-marquette
    @alex-marquette 8 лет назад +8

    I'm currently in Calculus and you teach this better than my professor and the god awful textbook of Single Variable Calculus by James Stewart.

  • @kevinparsley6806
    @kevinparsley6806 5 лет назад +1

    the dislikes clearly are not for whether he explained the subject adequately... which is the only thing i was after when i opened the video. thank you.

    • @profrobbob
      @profrobbob  5 лет назад

      ...and thank you for watching!

  • @profrobbob
    @profrobbob  11 лет назад

    You're welcome...and THANK YOU for putting me first on your subscriber list:) I look forward to teaching you more math:)

  • @georgesadler7830
    @georgesadler7830 2 года назад

    Professor Tarrau/RobBob, thank you for a mammoth video/lecture on the Slope of Tangent Line Derivative at a Point in Precalculus/Calculus One AB. This material will only strengthen students overall understanding of the first semester Calculus. Understanding Functions and Graphs are important in all levels of Mathematics.

  • @DefScream189
    @DefScream189 11 лет назад

    Thanks for this, my teacher is cool and all but all he does is write equations on the board. You make it so easy to understand, definitely subscribing.

  • @BrownBrotha
    @BrownBrotha 12 лет назад

    You are the biggest life saver! I had no idea what was going on for my Calculus class and this just saved me :)

  • @profrobbob
    @profrobbob  11 лет назад

    You're welcome, thanks for subscribing too! I hope you enjoy learning math from Tarrou's Chalk Talk and if you do please share your experience and my channel with everyone and help me groW!

  • @profrobbob
    @profrobbob  12 лет назад

    Thank you very much...and thanks for watching:)

  • @Apollo4275
    @Apollo4275 7 лет назад +1

    I'm in college and this video helped me so much and I think I will be able to pass my exam today. Thank you!!

    • @profrobbob
      @profrobbob  7 лет назад

      Here's to passing that exam like BAM!!! Rae!
      You're welcome and thanks for studying and subbing too:)

  • @saucerset12
    @saucerset12 12 лет назад

    Well I would say that the h's divide out to make a whole number 1, times 2 to make the answer 2. But the right answer is probably 1/2. I also want to thank you for taking the time to put up with me like this. I enjoy your videos, they really help since I am taking class as an online course.

  • @eFFusiVeDESIGNS
    @eFFusiVeDESIGNS 11 лет назад

    you are a homie teacher, when u take 5 ap courses junior year, its difficult to get everything done. THIS HELPS SO MUCH FOR MY CALC TEST TOMORROW!

  • @tuxhome3686
    @tuxhome3686 2 года назад +1

    Love your energy! Thanks for the help!

    • @profrobbob
      @profrobbob  2 года назад

      You're welcome...thanks for watching and learning!
      Don't forget to like, sub and share this channel with everyone...BAM!!!

  • @ZorakTheGreat
    @ZorakTheGreat 9 лет назад +4

    Prof RobBob, the Living Legend.

    • @profrobbob
      @profrobbob  9 лет назад +1

      +jeremy forrest BAM!!!
      Spread the word:D

  • @KBstreetart
    @KBstreetart 12 лет назад

    love your enthusiasm, you are very easy to follow, I was trying to understand this concept from a book but didn't understand and now i do thank you!!!

  • @mr.ochanthou
    @mr.ochanthou 11 лет назад

    Thank you for disseminating your knowledge not only to me, but the entire RUclips community. I am truly obliged for this helpful and convivial interactive lesson. Thank you and I will definitely subscribe! :)

    • @profrobbob
      @profrobbob  11 лет назад

      You're welcome…thanks for being another one in the RUclips community to choose and appreciate my channel! Please share with others and remind them how important it is to SUBSCRIBE and support the ads on educational channels like mine & help these channels stay FREE:D

  • @elhermanomayor34
    @elhermanomayor34 3 года назад +1

    He's still goated in 2021 guys, thank you professor

  • @profrobbob
    @profrobbob  11 лет назад

    That's awesome, thanks for watching!
    Guess what?!...my new videos are recorded in 1080p...see what you have to look forward to as you advance in math...lol

  • @profrobbob
    @profrobbob  11 лет назад

    Love to hear it, they are intended to help with just that:) Thanks for supporting by subscribing too!
    Please tell all your friends to watch and do the same:D

  • @profrobbob
    @profrobbob  12 лет назад

    YES!!! Thank you for watching and the nice review:)

  • @profrobbob
    @profrobbob  12 лет назад

    About ten hours as well. Most days the building stays open longer where I work...they were just doing maintenance work that day:) Thanks for watching too!!!

  • @ambushprime
    @ambushprime 6 лет назад +1

    You saved my homework grade tonight. Thank you, you earned a sub

    • @profrobbob
      @profrobbob  6 лет назад

      You're welcome...thanks for the sub and for taking the time to seek outside help and choosing this channel to study with!
      Sounds like the perfect time to tell your teacher about us so all the rest of the students know where to find free after school help...BAM!!!

  • @profrobbob
    @profrobbob  11 лет назад

    THANKS for supporting by subscribing!...keep watching and sharing your enthusiasm about my channel:D

  • @profrobbob
    @profrobbob  11 лет назад

    THANKS...I'm glad to hear that you found the help you needed from my video...I hope you will share my channel with your friends and classmates as well and help my channel groW! Now go pass that test like BAM!!!

  • @profrobbob
    @profrobbob  12 лет назад

    You're welcome...all the way from Florida:)) I actually have a large viewership in Canada...excited to add another one!

  • @profrobbob
    @profrobbob  12 лет назад

    Thaaaannnnkkk YOU! Keep watching and spreading the word about my channel:D...thanks.

  • @rudolfgyorkei9558
    @rudolfgyorkei9558 8 лет назад

    You just improved my calculus grade! You deserve my tuition......

    • @profrobbob
      @profrobbob  8 лет назад +1

      ...but YOU were the one who took the time to seek outside help and study, glad I could help!
      If only it worked out that way...I'd have enough money to pay someone to CC the rest of my videos...BAM!!!

  • @profrobbob
    @profrobbob  12 лет назад

    Well if it makes you feel any better, I had to pull a video for a correction recently where I said -1*-1 equaled 2!!! It did not have 3400 views though. My heart sank there for a second:) Thanks for watching and the kind words.

  • @rmokry87
    @rmokry87 11 лет назад

    Thank you for this! You explained everything so clearly and precisely it would be hard NOT to understand.

  • @profrobbob
    @profrobbob  12 лет назад

    in addition to my first reply...thank you too for subscribing, and please spread the word (I haven't been around as long as the other 2:(

  • @profrobbob
    @profrobbob  12 лет назад

    ...Calculus as I make these videos. I have been teaching for 17 years yet never had the chance to teach calculus...now I do:)

  • @maddisonfeldman9712
    @maddisonfeldman9712 11 лет назад

    I will definitely be sharing this video with my calculus study group! Thank you for your help!

  • @profrobbob
    @profrobbob  12 лет назад

    Me too...but if you tell a friend, and they tell a friend, and they tell some more friends, we can make that happen!...thank you for liking my video:)

  • @profrobbob
    @profrobbob  11 лет назад

    That's awesome news!...not the crying of course:) Now you can go into your calc class with your new found confidence and tell all your friends how to find some of their own...by sharing my channel info with them:D

  • @yavorkrastyovski409
    @yavorkrastyovski409 9 лет назад +2

    Thanks, Professor Rob, there is no better way preparing for a test than listening to your videos and following though! Great explanation, a big thanks for the videos!

    • @profrobbob
      @profrobbob  9 лет назад

      Another video already Yavor Krastyovski ?! AWESOME! I just replied to your last compliment...thanks for taking the time to study and "thank the teacher" I wish some of my own students were so motivated:)
      Sounds like you're planning to pass that test like BAM!!!

  • @ericstevens1398
    @ericstevens1398 10 лет назад +1

    EXTREMELY HELPFUL, u the real mvp

  • @myumewmew
    @myumewmew 10 лет назад +3

    This is a life saver, and I'm in college. I laughed so hard at 24:00, love your humor.

    • @profrobbob
      @profrobbob  10 лет назад

      Thanks for choosing #ProfRobBob to watch and learn from Myung Cha ...please share your learning experience and my channel with all your college friends and be sure to remind them to like, SUBSCRIBE and "Support" :D
      ...That way I'll be here to throw the life ring and make them laugh 24/7...BAM!!!

  • @profrobbob
    @profrobbob  11 лет назад

    Find the derivative which gives you the slope of the original function and the set that equal to the desired slope. Finish by solving for x:) Thank you for watching and your support.

  • @profrobbob
    @profrobbob  12 лет назад

    You would just find f'(a) and plug in the multiple x values you are given into your first derivative to find the slope at each of those points:)

  • @edwardlee487
    @edwardlee487 11 лет назад

    Thank you so much.. Your lessons are getting me through my calculus exams..

  • @profrobbob
    @profrobbob  12 лет назад

    Are you referring to the beginning of the last example at minute 21:56? In the first line I have sqrt((5+h)-1) and the next line it is sort(4+h)? 5-1 is 4.

  • @profrobbob
    @profrobbob  11 лет назад

    And thanks for supporting by subscribing...I hope you continue to enjoy learning from my channel:)

  • @profrobbob
    @profrobbob  11 лет назад

    And thanks for watching!

  • @profrobbob
    @profrobbob  11 лет назад

    And THANK YOU for supporting by watching, liking and subscribing! Keep watching and sharing with your friends:D

  • @profrobbob
    @profrobbob  12 лет назад

    Fantastic!!! Glad I could help and I hope you do great this year:)

  • @profrobbob
    @profrobbob  12 лет назад

    And I do LOVE my chalkboards:) I'm glad you found my teaching style "easy to understand" and the handwriting comes from learning calligraphy years ago, thanks for noticing...It also gives students one less excuse to use...lol Please keep watching and sharing my channel with others who might benefit:D...thanks.

  • @gonsalvesdenyese
    @gonsalvesdenyese 9 лет назад

    MY PROFESSOR!!!!!!! THERE IS NO ONE LIKE HIM. He is like pi!!!!!!!

  • @victoriasweeney522
    @victoriasweeney522 11 лет назад

    Thank you, Mr. Tarrou!! I miss you SOOO much

  • @paudorta
    @paudorta 12 лет назад

    U ARE AWESOMEEEEEEEE!!!! now u have a fan ! thanks SO much for making my life so much easier!

  • @LEi685
    @LEi685 12 лет назад

    Thank you so much :) I have a much better understanding watching this video than listening to my professor

  • @profrobbob
    @profrobbob  12 лет назад

    You are welcome...thanks for watching:) I have a lot more videos to do, so more are on the way. I hope you do great in your math studies.

  • @profrobbob
    @profrobbob  11 лет назад

    Good Luck...yes 5 AP courses is alot but the payoff is awesome! Keep studying and always stay ahead of the game and you will be applying to colleges with those great grades before you know it!

  • @samalfaro5748
    @samalfaro5748 10 лет назад +1

    wow thank you so much for taking the time to explain step by step! i wish you were my teacher!

    • @profrobbob
      @profrobbob  10 лет назад

      You're welcome Sam Birch !
      Like and SUBSCRIBE and I can be your RUclips math teacher anytime you want to learn:) I hope you will continue to share my channel with everyone needing free math help:D

  • @Actraiser1
    @Actraiser1 9 лет назад +6

    You are my savior.

    • @profrobbob
      @profrobbob  9 лет назад +3

      +Actraiser1 BAM!!!
      Glad I could help...thanks for watching, learning and subbing to my channel!

  • @profrobbob
    @profrobbob  11 лет назад

    Thanks!...Keep watching and learning and then get to school and tell them where to find my channel:)

  • @rxhighlights8203
    @rxhighlights8203 10 лет назад +2

    My Dear Friend I Just Want To Let You Know That We Appreciate The Time You Took Out Of Your Life To Help Us All Who Have Viewed This. It has really helped and made calculus a little easier. #swag

    • @profrobbob
      @profrobbob  9 лет назад

      You're welcome Middy Laguerre and thanks for choosing #ProfRobBob to learn from and taking the time to thank the teacher :)
      Please help me by liking my channel on Facebook, liking, supporting the ads, subbing, sharing thru social media and with your friends, class and teachers...all these things help this channel groW and remain free to help others learn!

  • @profrobbob
    @profrobbob  12 лет назад

    Yes my videos are made after working hours!

  • @angeleyes9565
    @angeleyes9565 10 лет назад

    You are so fun!!!! I loved the video and the sound effects. I have understood so much. Thank you!!!!!!!!!!!!!!!!!!!!

  • @o0KnightOfZero0o
    @o0KnightOfZero0o 12 лет назад

    Aw mah gah! this is the best Slope of Tangent Line Video I've found!

  • @profrobbob
    @profrobbob  11 лет назад

    WHOOOhoooo...congrats and nice job on that 94!

  • @Thewretchedwilly
    @Thewretchedwilly 11 лет назад

    Thank you very much! You were very good at explaining things, and even though the video was long, It was very helpful!

  • @evelincarrillo9582
    @evelincarrillo9582 10 лет назад +1

    This video just made my life so much easier

  • @SkyeBuddy1
    @SkyeBuddy1 12 лет назад

    Thank you sooooooooooo much, I would be lost without you

  • @epistrophy9919
    @epistrophy9919 9 лет назад +1

    Your great lecture explains clearly one of the foundations of calculus. I am curious as to how you do your lighting for your video.

  • @profrobbob
    @profrobbob  11 лет назад

    LOL...that was one of my early videos that I shot from my classroom...the new ones only have the phone ringing and the dogs barking to listen for:) Keep watching and paying such good attention...teachers love that:D
    (I just posted a new FULL LENGTH version of this lesson if you need more help)

  • @profrobbob
    @profrobbob  12 лет назад

    If you have h/2h and you cancel out the h's, is the answer 2 or 1/2?