Posted by **ALLI** on Wednesday, September 5, 2012 at 6:01pm.

graph the parabola, then determine the domain and range. f(x)=x^2x-4x-4

- college algebra -
**Damon**, Wednesday, September 5, 2012 at 6:09pm
assume you mean

y + 4 = x^2 -4x

y + 8 = x^2 - 4 x + 4

y + 8 = (x-2)^2

vertex at ( 2 , -8)

so range is y >/= - 8

domain is all real x

- college algebra -
**ALLI**, Wednesday, September 5, 2012 at 6:21pm
so do i write the domain as (-infinity,infinity)

not sure how to write the range you showed. It has to be in interval notation

would it be (infinity,-8)?

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