Question

Which system of equations is represented by the graph?

one parabola opening upwards and one parabola opening downwards intersecting at points (2, 12) and (-2, 12)

y = x2 + 4x

y = –x2 + x + 12
y = x2 – 8

y = –x2 +16
y = x2 + 8

y = –x2 + 16
y = x2

y = –x2 – x –16

Answer 1

it is very simple
put x=0
find the value of y
see which satisfy
(0,8) and (0,16)