use the vertical line test to determine whether or not the graph is a graph in which y is a function of x. y…

use the vertical line test to determine whether or not the graph is a graph in which y is a function of x. y is a function of x. y is not a function of x.
Answer
Explanation:
Step1: Recall vertical - line test
If any vertical line intersects the graph at most once, then $y$ is a function of $x$.
Step2: Examine the graph
For the given graph, any vertical line drawn will intersect the graph at most once.
Answer:
$y$ is a function of $x$