The correct answer for this question would be <u>y=3x</u>
Step-by-step explanation:
If you look on the graph included in the picture you provided, you can see that all the numerical values in the 'y' row are three times the value of the values in the 'x' row.
It's basically a spinoff of the y=mx+b formula except there are two x's in case you don't know exactly how many to buy or else you'd literally just add them all together. I hope this helps and gives you a better idea on how to solve it.
