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Find the vertex of the functions given below.
1. y=(x-4)(x+2)

2. y=2x^2-4x+1

The midpoint of the x-intercepts of a parabola has the same x value as the vertex.
the x-intercepts are obviously x=4 and x=-2
so the x value of the vertex is......
sub that back into the equation to get the y value.

for the second one, just use the method of completing the square.

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