use the vertical line test to determine if y is a function of x in the graph. choose the correct answer…

Explanation:

Step1: Recall vertical - line test

The vertical - line test states that if any vertical line drawn on the graph of a relation intersects the graph at most once, then $y$ is a function of $x$.

Step2: Analyze the given graph

For the given parabola - shaped graph, any vertical line drawn will intersect the graph at most once.

Answer:

y is a function of x