Maximum Revenue Quadratic Word Problems

Writing a quadratic function to model the revenue of a word problem and using it to determine the price of a product that with maximize the revenue. To do these questions we use the axis of symmetry to find the vertex.
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Math with Mr. Barnes is a math video tutorial channel meant to help students with math. I’ve has been a high-school mathematics teachers for 10 years. I make video tutorials on pre-calculus 10, 11, and 12, trigonometry, calculus, Physics, circle geometry, and more.
I have videos on: slope, lines, quadratics, exponents, circles, tangents, derivatives, limits, solving equations, and many more.
Check out some of my more of my videos:
Calculus Playlist:
• Calculus I
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[@dariushatcher5228]

Example 1: Revenue is 2000, Price is 20, and Tickets sold is 100 not 1000

[@Ali-eg9bl]

Darius Hatcher thanks that helps a lot i was so confused.

[@acereflex1605]

yeah thought i was crazy

[@hdualsjei3alegw9wp45]

thank you thought I missed something it was driving me nuts

[@tresticboy]

@@hdualsjei3alegw9wp45 lmfao same

[@sahilnijjer4124]

thx so much i needed reassurance lmao

[@karanpuri3668]

When he said, “my own students never watch my videos😂”

[@divineu9447]

Thank you for doing this video my teacher taught us NOTHING and I have to teach myself by goi me online so I don’t fail

[@slimey_37]

Your not teaching urself hes teaching you

[@lauren1000]

Lmao

[@JorgeLopez-du3pg]

the 24 people who disliked this video is probably the jerk students who don't watch this guy's videos

[@Creativity_360]

I'm taking a 'self-taught' online course for applied and that first example was very helpful! i was really confused on a maximum price question and your explanation cleared it up!

[@3thos]

thanksI was very confused as to what to do for this and I found this video purely by chance, may I suggest you create a more detailed plan in advance to making your videos, mainly because you make a lot of mental math mistakes and maybe get a better mic

[@jesuisravi]

the first problem should have 2000 where you have 20000.

[@qwiickk]

Well, the little 100/1000 mix-up aside, this video made the concept really easy to understand. Thank you! You should be in both the boat ticket and math video business.

[@Sukuna2437]

U made a mistake on the first one, the 50+5(10) is 100, not 1000

[@soulreaperichig0]

In the last problem, the profit is 3610, the revenue is 5890.

[@asader0]

It’s less work to find the axis of symmetry in the middle of the two x intercepts… converting to standard form and then using the equation is not as meaning full, it’s more work and it removes the need for understanding the relationships between quadratic features…😢

[@Happy_Fun_Ball]

666th like but I still feel lucky for finding this video!

[@septome7227]

SO HELPFUL thank you!! From 2024 math

[@Aurjyn]

Mr Barnes just saved me. Thank you sir.

[@calebbrandt]

Do you have any videos on more words problems? I really need help with some grade 11 pre cal stuff. Thanks, you're one of the only youtubers I understood learning about word problems.

[@theperson4yearsago565]

I got 2000 as revenue on the first problem

[@Yolaaa234]

You saved my life thank you so much

[@rehantinani8683]

god bless you

[@АннаТуровська-щ6б]

I was struggling with this type of problems for so long, but after i've watched 3 minutes of your video I finally got it. Thank you so much!

[@jonawottjwt5135]

ur a god send thank you!

[@silenth1806]

Thank you very much Mr. Barnes, maybe you wont see this comment- but nevertheless a lot of people's grades are being saved from your videos.

[@louiecanadilla3672]

#sold is not equal to 1000, it should only be 100, because 50+5(10) = 100 not 1000, therefore the max. revenue should only be 2000.

[@kel9239]

i love you

[@elsiegama1474]

Am so happpppy that finally the last concept in my to do list has been finalized in this vd. now am confident that i woooont fail my upcoming test on Tuesday . thanks for making thid vd

[@Motoko-d7h]

Where can I find worksheets like this? And great video sir.

[@rodriqcc]

I listened to you! Hi from Texas in 2020

[@johnmarkmwangi2123]

Thanks, i'm from kenya

[@user-ky6yr4tu3w]

Thanks a lot Mr Barnes!

[@rehantinani8683]

life saver

[@skinandbones4978]

Thank you

[@lauren1000]

Thanks

[@vrushaliwalanj5287]

Youre handwriting is so hard to read

[@lauren1000]

Ok cool

[@dragniollit2129]

Ig u just don’t know how to read cuz that’s pretty easy

[@fatimasaleh9269]

Can the n be negative!!!?

[@mathwithmrbarnes]

Not for these examples.

[@fatimasaleh9269]

@@mathwithmrbarnes I mean in general !?

[@mohammedashraf6689]

Thanks

[@cartertullis5620]

thanks this helped

[@Happy_Fun_Ball]

You could also take the derivative to solve for n

[@galinavogiatzis1154]

Thank you teacher from the Russian mom. I am trying to help my 11 grade son with the similar word problem. I used to be good in this. But 30 years ago. And It was in Russian language. So I have to shake my memory and translate everything in English. Oh boy! Looks like I am still ok. Me and my son solved the problem in two ways. Both times the X vertex is negative. In our case X is amount of weeks, and Y vertex is profit. How come the amount of weeks can be negative?

[@jeelpatel9949]

Thank you, it was very informational