4.

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

(-5, -5)
(-3, -3)
(1, 1)
(2, 2)

Yes; no vertical line passes through two graphed points.

No; a vertical line passes through two graphed points.

Yes; no horizontal line passes through two graphed points.

No; a horizontal line passes through two graphed points.