# Answer on Algebra Question for Erica

Question #2176

Find x-intercepts and vertex, then sketch graph of f(x)=x2-8x+12

Expert's answer

x-intercepts:

x

D = 16 - 12 = 4

x

Vertex: x = -b/2a = 8/2 = 4, y(4) = -4, so the vertex has coordinates (4,-4).

x

^{2}-8x +12 = 0D = 16 - 12 = 4

x

_{1 }= 6, x_{2}= 2.Vertex: x = -b/2a = 8/2 = 4, y(4) = -4, so the vertex has coordinates (4,-4).

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