Question

What test is used to determine if a relation is a function?

Answer 1

Explanation:

the vertical line test can be used to determine whether a graph represents a function. If we can draw any vertical line that intersects a graph more than once, then the graph does not define a function because a function has only one output value for each input value.

Answer 2

Answer: The vertical line test can be used to determine whether a graph represents a function.

Explanation: If we can draw any vertical line that intersects a graph more than once, then the graph does not define a function because a function has only one output value for each input value.