Question

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

Answer 1

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

Explanation:

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`