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

Question

(3,-1)
(2,-1)
(-4,0)
(2,4)

A.Yes; no horizontal line passes through two graphed points.

B.No; a horizontal line passes through two graphed points.

C.Yes; no vertical line passes through two graphed points.

D.No; a vertical line passes through two graphed points.

Answer 1

The relation can be graphed as follows:

(3,-1)
*

(2,-1)
* *

(-4,0)
*

(2,4)
* *

The relation is a function because no vertical line passes through two graphed points. Therefore, the correct answer is C) Yes; no vertical line passes through two graphed points.