Question

1. Which point on the graph makes this relation not a function?

4
-1
-24
O (-5,2)
O(-3,0)
O (0, -3)
(3,3)
O None of the above

Answer 1

vertical line test

If we were to draw a vertical line anywhere through the graph of a relation on the cartesian plane, and the vertical line only touches the graph once, then the relation is a function.

If a vertical lilne drawn anywhere on the graph touches the graph more than once, then relation is not a function.

Check the picture below.