Question

Which equation matches the graph shown?

A.y=(x-2)(x-1)
B.y=-(x-2) (x+1)
c y= -( x+2) ( x*1)
D. y= ( x-2) (x+1)

Answer 1

B. v = - (x - 2)(x + 1)

Explanation:

The parabola opens downward so a<0

zeros are: x₁=-1 and x₂=2, so the factors are:

(x - x₁) = [x - (-1)] = (x + 1)

(x - x₂) = (x - 2)

which gives: - (x + 1)(x - 2)