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July 30, 2015

Homework Help: college algebra, Please help!!

Posted by ladybug on Friday, November 9, 2012 at 1:11pm.

Answer the following function.
f(x)=2x^2-x-1

A. Is the point (-2,9) on the graph of f?
B. If x equals 2, what is fx? What point(S) are on the graph of f?
c. if f(x)= -1, what is x? what point(s) are on the graph of f?
d. what is the domain of f?
e. List the x-intercpts, if any, of the graph of f.
f. List the y-intercept if any, of the graph of f.

**Can someone please help me with this. I have no idea, i'm lost!!!

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