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February 28, 2015

February 28, 2015

Posted by **katie** on Friday, September 2, 2011 at 7:22pm.

Are the answer to this 5 and 3

I must not understand

- Math Algebra -
**Karine (:**, Friday, September 2, 2011 at 8:28pmf(x)=x^3+4

f=1

f(1)=(1)^3+4

(1)^3=1 because 1X1X1=1

1+4=5

so f(1)=5

f=-1

f(-0)=(-1)^3+4

(-1)^3=-1

because -1x-1x-1=1x-1=-1

-1+4=3

so f(-1)=3

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