SOLUTION: -x^2+12x=36 by graphing the x intercept is?

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Question 380346: -x^2+12x=36 by graphing the x intercept is?
Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!

Hi,
graphing
-x^2+12x=36
x^2 -12x +36 = 0
factoring
(x-6)(x-6) = 0 Note:SUM of the inner product(-6x) and the outer product(-6x) = -12x
(x-6)= 0
(x-6) = 0
x = 6 Pt(6,0) the x intercept
x^2 -12x +36 = (x-6)^2
the vertex form of a parabola, where(h,k) is the vertex
here, the vertex is at Pt(6,0) a = 1 (a is positive, graph opens upward)


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