How do you write the Vertex form equation of the parabola $y = 2x^2 + 12x - 7$ ?

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Answer 1 · 2016-02-22T01:06:01

$y = (x + 3)^2 - 25$

x-coordinate of vertex:
$x = -b/(2a) = -12/4 = -3$
y-coordinate of vertex:
$y(-3) = 18 - 36 - 7 = -25$
Vertex form: $y = (x + 3)^2 - 25$

How do you write the Vertex form equation of the parabola y = 2x^2 + 12x - 7y = 2x^2 + 12x - 7?