For the function y=x2+2x+1y=x2+2x+1: (a) Find a formula for the slope of the tangent line to the graph of ff at a general point x=ax=a. Be sure that your formula is in terms of aa. (b) Using this formula, find the slope of the tangent line to ff at x=1x=1.     Slope at x=a:x=a:   Slope at x=1:x=1:

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter2: Functions
Section: Chapter Questions
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 For the function y=x2+2x+1y=x2+2x+1:

(a) Find a formula for the slope of the tangent line to the graph of ff at a general point x=ax=a. Be sure that your formula is in terms of aa.

(b) Using this formula, find the slope of the tangent line to ff at x=1x=1.

 

 

Slope at x=a:x=a:  
Slope at x=1:x=1:
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