Let

a. Find the average rate of change of over the interval

b. Find the rate of change of at

c. Find the equation of the tangent line at

d. Find the equation of the normal line at

Here are my answers, are they correct?

a. 2

b. 3

c.

d.

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- Oct 25th 2009, 11:31 AMlive_laugh_luv27Rates of change
Let

a. Find the average rate of change of over the interval

b. Find the rate of change of at

c. Find the equation of the tangent line at

d. Find the equation of the normal line at

Here are my answers, are they correct?

a. 2

b. 3

c.

d. - Oct 25th 2009, 11:41 AMArturo_026
As far as i can see it looks good.

So for a you used f(b)-f(a)/b-a , for b you found f'(3) and your line equations look good.

Nice job. - Oct 25th 2009, 11:44 AMlive_laugh_luv27