Question

Graph the relation shown in the table. Is the relation a function? Why or why not?

x | y
-1 | 3
-1 | 2
0 | -4
4 | 2

A. Yes; no horizontal line passes through two graph points.
B. Yes; no vertical line passes through two graph points.
C. No; a vertical line passes through two graph points.
D. No; a horizontal line passes through two graph points.

Answer 1

C

Explanation:

There are 2 of -1s and they are both on the x axis which there for means that it would be a vertical line going up and down for 2 points at the -1