Question

Geometry, thanks if you help me! :)

Answer 1

See below.

Explanation:

Graph A is a function because it passes the vertical line test. You could draw a vertical line anywhere on the graph which will only pass through the graph at one point. It is a many-to-one relation.

Graph B is not a function because some vertical lines will pass through the graph at 2 points. It is a one-to-many relation.,

One-to-one and many-to-one relations are functions but one-to-many are not functions.

Answer 2

A is a function/B is not.

Explanation:

A, there are 1 x value for 1 y value.

B, is not a function because for 1 x value, there are 2 y values.