Question

What is the vertex form of `7y=(x − 3)(4x + 2)`?

Answer 1

`y = 4/7(x- 5/4)^2 - 7/4`

Explanation:

`7y = (x-3)(4x+2)`

`y = 1/7 * 4 * (x-3)(x+ 1/2 )`

`y = 4/7 (x^2-5/2 x - 3/2)`

`y = 4/7 [(x- 5/4)^2 - 49/16]`

`y = 4/7(x- 5/4)^2 - 7/4`