I think it is D. You can see that the triangle has flipped over the Y axis and the one point moved 2 places.
0.125 is bigger than 0.15.
Answer:
The vertex of a parabola is found by
'h' position = -b / (2 * a) = 0 / 2 * -4 = 0
'y' position = ah^2 + bh + c = -4*0 + 0 -20
vertex = (0, -20)
Step-by-step explanation:
X+y=12
x-y=4
-----------
2x= 16
x= 8
y= 4