ok here is a good one i found(adsbygoogle = window.adsbygoogle || []).push({});

a) f'(-1)=f'(1)=0

b) f'(x)<0 when -1<x<1

c) f'(x)>0 when x<-1 and x>1

d) f(-1)=4; f(1)=0; and f(0) has no value

e) f''(x)<0 when x<0 and f''(x)>0 when x>0

what is the original f?

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# Homework Help: Math challenge

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