Tuesday
March 31, 2015

Homework Help: Calculus

Posted by Robert on Monday, October 8, 2007 at 12:43am.

55. Find an equation of the tangent line to the graph of
f(x) =x^3 - 2x + 1
a) at (2,5);
b) at (-1,2);
c) at (0,1).

I believe the answers are:
a) y= (3/2 x) - (3/2)
b) No solution
c) No solution

For each function, find the points on the graph at which the tangent line is horizontal. If none exists, state that fact.
67. y=4
73. f(x) = (1/3)^x^3 + (1/2)^x^2 - 2

For the function, find the points on the graph at which the tangent line has slope 1.
79. y=(1/3)^x^3 + (2)^x^2 + 2x

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