Don completes the square for the function y=x^2+6x+3. which of the following function reveals the vertex of the parabola?

asked Mar 22, 2018 89.3k views

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don completes the square for the function y=x^2+6x+3. which of the following function reveals the vertex of the parabola?

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x^2+6x+3=y
x^2+6x+9=-3+9
(x+3)^2=6
(-6/2)=-3
(-3)^2+6(-3)+9=6
9-18+9=6
y=-6

Rhathin answered Mar 26, 2018

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