Answer:
D & E
Explanation:
The constant of proportionality formula is y = kx. In the graph in question, when y = 6, x = 2. Plugging those values into the formula, 6 = k(2), we get that the value of k = 3. So, the correct answer should have a constant of proportionality of 3.
A) When dividing both sides by 6, we get y = 1/3 x. In this equation, k = 1/3, so this is not the answer.
B) k = 1/3 again, so this is not the answer.
C) When y = 6, x = 1. 6 = k(1), so k = 6. So, this is not the answer.
D) When y = 9, x = 3. 9 = k(3), and k = 3. This is the correct value of k. Plugging in other values from the same table give you the correct value of k. This is a correct answer.
E) When y = 15, x = 5. 15 = k(5), and k = 3. This is the correct value of k. Plugging in other values from the same table give you the correct value of k. This is a correct answer.
hope this helps! <3