Determining where a function is increasing and decreasing using the first deriviative

[Leviathanshadex]

Great video man, thank you. You explained it better than anyone so far that I've looked up!

[DistantTwinkle]

Thanks, I have a test next Monday so this definitely helped me out. Calculator cuts out extra pencil work. Thanks I loathe math but this was simple!

[pedialite]

Better than my lecturer could explain.

[Mathispoweru]

I found f '(x) by finding the derivative of the function. d/dx[1] = 0. d/dx[-x^(2/3)] =-(2/3)x^(-1/2). This is the power rule. Multiply by the current exponent, then subtract 1 from the exponents. -(2/3)x^(2/3 - 1) = -(2/3)x^(-1/3). The you move x^(-1/3) down to the denominator and it becomes x^(1/3) which equals the cube root of x.

[petermk]

thank you so much...really helpful!! used to struggle with this so much.

[mred]

universities here in Canada don't use graphing calculator...you should do examples without graphing calc

[TehWhimsicalWhale]

Haha thanks for all your videos- so much easier to understand than class....

[otaku]

Thank you, I was having trouble with this

[rage]

jump to 5:00. too much time on introduction. Not necessary

[emma]

what does it mean if i get error whenever i try to write any value (like f(-1) or f(3)) in a function that has a root ??

[thenatiy]

i needed you to explain the other two dammit

[DKRaFiQ]

i dont understand from this part 8:30 how did you get that equation?

[miyukitty]

where'd you get the program? 0.0

[jagjitsinghsandhu]

I which software you have made this video.