SOLUTION: Graph the function: y=x^2-4

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Question 286836: Graph the function:
y=x^2-4
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
set y=0 and solve for x
set x=0 and solve for y
It is a parabola with vertex 0,-4
y = (x-2) (x+2)
when y=0 x=2 and x=-2