A set of points is graphed on the scatter plot. Is y a function of x on the scatter plot? Why or why not?

A
Yes, because the point (6,0) is located on the x-axis.

B
Yes, because the point (0,7) is located on the y-axis.

C
No, because x=−5 corresponds to both y=1 and y=−3.

D
No, because y=−3 corresponds to x=−5, x=−3, and x=1.