- #1

- 11

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If I am given...let's say:

f(2) = 3

f'(2)= -1

How would I go about finding f(x)

Thanks in advance.

- Thread starter Big-J
- Start date

- #1

- 11

- 0

If I am given...let's say:

f(2) = 3

f'(2)= -1

How would I go about finding f(x)

Thanks in advance.

- #2

rock.freak667

Homework Helper

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...integration is the reverse of differentiation...

i.e. [tex]\int f'(x) dx=f(x)+C[/tex]

i.e. [tex]\int f'(x) dx=f(x)+C[/tex]

- #3

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- #4

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I haven't learned integration yet.

So then how do you propose I do this question. (Actual HW question)

Given:

g(2) = 3

g'(2) = -2

h(2) = -1

h'(2) = 4

f(x) = g(x)/h(x)

Find f'(2)

- #5

rock.freak667

Homework Helper

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Use the quotient rule to find f'(x) and then sub x=2.Then sub the values that you were given.

- #6

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Try differentiating f(x). You should get a result in terms of g, g', h, and h'. Plug in and you're done. :)

I haven't learned integration yet.

So then how do you propose I do this question. (Actual HW question)

Given:

g(2) = 3

g'(2) = -2

h(2) = -1

h'(2) = 4

f(x) = g(x)/h(x)

Find f'(2)

- #7

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- 0

Genius! Thanks :D

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