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**nycmathguy****Member**- Registered: 2021-06-02
- Posts: 53

Given f (x) = x^2 − 1, find the slope of the secant line containing the points

P = (−1, f (−1)) and Q = (−1 + h, f (−1 + h)).

Solution:

By carefully looking at this problem, I think the first step is to

evaluate f(-1) and f(-1 + h). Is the second step to find f ' (x)?

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**Bob****Administrator**- Registered: 2010-06-20
- Posts: 9,207

Yes. This is just like the question I have just done with y = x^3.

B

Children are not defined by school ...........The Fonz

You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei

Sometimes I deliberately make mistakes, just to test you! …………….Bob

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**nycmathguy****Member**- Registered: 2021-06-02
- Posts: 53

Bob wrote:

Yes. This is just like the question I have just done with y = x^3.

B

I will also play with this question some more on my days off.

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