Question

Can someone explain what to do

Answer 1

8

Explanation:

The equation of the parabola can be represented as

`y = a(x + 1)(x - 5)`

for some constant a.

Since the coefficient of x² is 2, a = 2, so

`y = 2(x + 1)(x - 5) \\ \\ y = 2( {x}^(2) - 4x + 5) \\ \\ y = 2 {x}^(2) - 8x + 10`

So, the answer is 8.