Question

PLEASE HELP ASAP!!!!!!

Which Equation is Represented by the graph?

A. y=-2x^2 + 4x + 1

B. y = 2x^2 - 4x + 1

C.

`y = - (1)/(2) * {} ^(2) - 2x - 1`
D.

`y = (1)/(2)x ^(2) + 2x + 1`

Answer 1

The parabola hits (-2,1) and (0,-1).
As you can see from the pictures, we can immediately cross out options B and D, since both parabola open upwards.
From the pictures, we can see that the answer is C, since only that parabola opens downwards and hits the points (-2,1) and (0,-1).