To determine if it is a function or not, you can not have a vertical line drawn down the graph touch 2 of the graphed points. That means that you can not have 2 points with the same x value and different Y value. The first set of points satisfies this and is your answer. Hope that helps.
the reason why is bcz youre gay jk haha its because you have to mulitply 650 by 2 then square it divide by 2 and then cube it then you will have to do the quadraric formula to get your answer
