What is the vertex of $y=-x^2-2x+(x-2)^2$ ?

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Answer 1 · 2016-03-16T19:09:01

Does not have one!

This is a graph of a straight line! Consequently does not have a point where two or more lines meet.

$y=(-x^2-2x) +(x^2-4x+2)$

$y=-6x+2$

What is the vertex of y=-x^2-2x+(x-2)^2 y=-x^2-2x+(x-2)^2 ?