MHB Which AP Practice Question Choice Did You Select?

[karush]

View attachment 2214

this is a practice AP question but the answer is not given from the A to E selection
had a hard time with this not knowing what the functions were so just using what was given I did this (bold mine) I chose (D). It appeared that some of what was give was not needed...

 

[MarkFL]

We are given:

$$h(x)=f\left(g(x) \right)$$

Thus, by the chain rule, we find:

$$h'(x)=f'\left(g(x) \right)\cdot g'(x)$$

So, plug in $x=1$, and what do you find?

 

[karush]

We are given:

$$h(x)=f\left(g(x) \right)$$

Thus, by the chain rule, we find:

$$h'(x)=f'\left(g(x) \right)\cdot g'(x)$$

So, plug in $x=1$, and what do you find?

$$-5\cdot-3 = 15$$ which is $$(B)$$

 

[MarkFL]

Correct! (Star)

 

[karush]

thanks
don't see the thanks button tho?