Question

How do you write `y=x^2+2x-35` in vertex form?

Answer 1

see below

Explanation:

`y = x^2 + 2x -35`

use completing a square,

`y = (x + 1)^2 - (1)^2 - 35`

`y = (x + 1)^2 - 36`

since `(x + 1)^2` has a +ve value, it is a minimum vertex `-35` at `(-1, -35)`