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I appreciate your channel greatly

Loving the lessons Mr Keith. Please bring back the fitness videos!

Thank you chief keith 🙏🏼

I just remembered you had a workout video and decided to get my jump and pump in! Ready for the holidays 🎅🏼🎅🏼🎅🏼

thank u very much

Thanks Mr. Keith!

YEAHHHH WOOOOOO THANKS

10/10 this guy teaches better than my current math teacher, thank you!

You're back! Also, first!

Mr.Keith I got an A in Calc 1 at UCF it was all thanks to you. Much Love. Randall from 2nd period last year

Mr. Keith still at it. I'm still referring back to my notes from your classed in Physics 1

KEITH

KEITH

ayy

Substitute values into the derivative when you're trying to find locations of absolute maximum and absolute minimum. Substitute into the original function when you need to find the actual absolute maximum or minimum value of the function.

When do you plug into first derivative or original function? Thank you for video

OMG Mr. Keith you are such a great teacher!!!!! You explain everything so well I WISH YOU WERE MY TEACHER!!! :))))))))

nice bedroom Greg .... Mike M.

But could you spare us the pain, and show it to us months ago!?

Thanks for uploading these.