Question

1. Which set of ordered pairs in the form of (x,y) does NOT represent a function of x? (1 point)
A. {(-1,2), (3,-2), (0,1), (5,2)}
B. {(-1,2), (3,2), (-2,2), (0,2)}
C. {(-1,2), (3,-2), (0,1), (3,5)}
D. {(-1,2), (2,3), (3,-2), (-2,0)}

Answer 1

if a single x-value maps to more than one y-value, then it is not a function.
See any like that?

Answer 2

I think it's D, since I graph it , and I made the vertical line test, I'm not sure but it's the one that touches the line more than once.