Homework Help: Calculus

Posted by g on Wednesday, July 4, 2012 at 9:31pm.

for f(x)=-x^2 +1, which value is the largest magnitude?
a) average rate of change from x=-1 to x=1
b) instanteneuous rate of change at x=3
c) instanteneous rate of change at x=0
average rate of change from x=-4 to x=0

Calculus - Steve, Thursday, July 5, 2012 at 10:29am
a) (f(1)-f(-1))/(1 - (-1)) = 0
b) f'(x) = -2x. f'(3) = -6
c) f'(0) = 0
d) (f(0)-f(-4))/(0-(-4)) = 4

pick the greatest magnitude.

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