Answer:
yes
Step-by-step explanation:
if the x values are on the left then yes.
If you were to graph it and connect them you will get a perpendicular line. To determine whether a graph is a function you can do the vertical test which is when you use a straight line vertically (up and down) if it touches more than one point then it's not a function if it doesn't such as your problem it is a function.
