Answer:
F, G, H
Step-by-step explanation:
$9/6 = $1.5
$6/4 = $1.5
The price is $1.50 per notebook.
Every point on the graph must have a y-coordinate that is 1.5 times the x-coordinate.
The function is y = 1.5x
F(3,4.50) 3 * 1.5 = 4.5 Yes
G(8,12) 8 * 1.5 = 12 Yes
H(7,10.50) 7 * 1.5 = 10.5 Yes
J(12,16) 12 * 1.5 = 18 No