SOLUTION: f(x)= x^2 -4 find roots and graph

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Question 144662: f(x)= x^2 -4 find roots and graph
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
f(x)=x^2-4
f(x)=(x-2)(x+2)
x-2=0
x=2 or (2,0)
x+2=0
x=-2 or (-2,0)
y=-4 or (0,-4)
+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+x%5E2+-4%29+ (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, x^2 -4).