Answer:
a.
Step-by-step explanation:
Since you have the different parabolas there, the simplest way to determine which one is, is replacing x as 0 and then y as 0
y = -1/4x^2 + 1
When x = 0
y = -1/4 (0)^2 +1 = 1
When y = 0
0 = -1/4x^2 +1
1/4 x^2 = 1
x^2 = 4
x = + 2
x = - 2
The parabola with points:
(0,1); (-2,0) and (2,0) is a.
