- #1

- 208

- 0

so i am trying to use f(x)=f(a)+f'(a)(x-a)

f(a)=-4

f'(x)=1/3(x^-2/3)

f'(a)=-1/48

so i get -4+1/48(x+64)

is that right?

You are using an out of date browser. It may not display this or other websites correctly.

You should upgrade or use an alternative browser.

You should upgrade or use an alternative browser.

- Thread starter Rasine
- Start date

- #1

- 208

- 0

so i am trying to use f(x)=f(a)+f'(a)(x-a)

f(a)=-4

f'(x)=1/3(x^-2/3)

f'(a)=-1/48

so i get -4+1/48(x+64)

is that right?

- #2

Dick

Science Advisor

Homework Helper

- 26,263

- 619

Well, you say f'(a)=-1/48 and you put +1/48 into the answer. Which is it?

- #3

- 208

- 0

it is the latter

- #4

Dick

Science Advisor

Homework Helper

- 26,263

- 619

Keerect. Then everything is ok.

Share: