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April 18, 2015

April 18, 2015

Posted by **plsHelp** on Tuesday, August 20, 2013 at 1:52pm.

a) f(x)=1-x2

b) f(x)=x2-2x

- Math -
**Steve**, Tuesday, August 20, 2013 at 2:42pmf(x) is increasing if f'(x) > 0

I'll do (a)

f'(x) = -2x

f'(x) > 0 when x < 0

The graph is a parabola with vertex at (0,1) which opens downward.

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