Homework Help: Algebra

Posted by Andrea on Sunday, May 20, 2012 at 1:06pm.

f(x)=x^2-1 ; x = -3, -2, -1, 0, 1, 2, 3

i got 8,3,0,-1,0,3,8 as the answer when i plugged in x. how would i graph these numbers from this function?

Algebra - Steve, Sunday, May 20, 2012 at 1:34pm
just plot the points for the y-values you found:

(-3,8)
(-2,3)
and so on

It should look like a parabola with its vertex at (0,-1)

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