Answer:
none of these
Step-by-step explanation:
An equation in the form of direct variation is in the form
y = kx
Checking each equation and substituting the point
-12 = -1/2 (9)
-12 = -4.5 not true
-12 = -1 1/2 (9) = -3/2 *9 = -27/2 - 13.5
-12 = -13/5 not true
-12 = 1/3 (9)
-12 = 3 not true
-12 = -3(9)
-12 = -27 not true
