Answer:
y=3x
Step-by-step explanation:
This problem is trying to trick you because they left off the four, but in reality this problem is pretty easy to solve.
When you jump from an x variable to the corresponding y variable, you can see that it is multiplied by three every time.
Since the x is being multiplied by three to get the y values, you'd need to place the three next to the x to show the relationship.
