Answer:
D
Step-by-step explanation:
substitute the x- coordinate of each point into the equation and if the value obtained is equal to the y- coordinate then the point makes the equation true.
A (- 3, - 1 )
y = 3(- 3) = - 9 ≠ - 1 ← false
B (3, 1 )
y = 3(3) = 9 ≠ 1 ← false
C (6, 4 )
y = 3(6) = 18 ≠ 4 ← false
D (2, 6 )
y = 3(2) = 6 ← true
