Question

home > math 141 (precalculus i) fall 2025 ls online > assessment sections 1.1 - 1.2 score: 1/21 answered: 1/21 question 2 select all of the following graphs which represent y as a function of x.

Explanation:

Step1: Recall vertical - line test

A graph represents $y$ as a function of $x$ if any vertical line drawn on the graph intersects the graph at most once.

Step2: Analyze first graph

For the first graph (a non - vertical straight line), any vertical line will intersect it at exactly one point. So it represents $y$ as a function of $x$.

Step3: Analyze second graph

For the second graph (a horizontal straight line), any vertical line will intersect it at exactly one point. So it represents $y$ as a function of $x$.

Answer:

Both graphs represent $y$ as a function of $x$.