Choose the correct proportions.

9, 12, 3, 4

a) 4:3 = 9:12
b) 3:4 = 9:12
c) 3:4 = 12:9
d) 3:12 = 4:9

Heather is writing a quadratic function that represents a parabola that touches but does not cross the x-axis at x = -6. which function could heather be writing? fx) = x2 + 36x + 12 = x2 - 36x - 12 f(x) = -x + 12x + 36 f(x) = -x? - 12x - 36