If we want to check whether the graph is a function or not we use the concept called vertical line test. If the vertical line drawn across at anywhere of the graph intersects the graph at most once, we decide …

Apr 15, 2020 · If you SEE the points (3, -2) and (3, 5) on your graph then your graph is NOT a function. Every x-coordinate of the graph can have only 1 y-coordinate associated with it.

You will work through 3 examples of determining which graph represents a function and a function with direct variation from four possible choices and how to easily find a correct answer using the vertical …

Oct 23, 2023 · If any vertical line intersects the graph at more than one point, the graph doesn’t represent a function. If every vertical line intersects the graph at most once, it is a function.

How To: Given a graph, use the vertical line test to determine if the graph represents a function. Inspect the graph to see if any vertical line drawn would intersect the curve more than once. If there is any …

Have you ever looked at a graph and wondered if it represents a function? Understanding how to tell if a graph is a function can be crucial in mathematics, especially when analyzing relationships between …

Here's how to determine if a graph represents a function: Draw a vertical line anywhere on the graph. If that line only hits the graph in one spot, then it passes the vertical line test and the graph is a function.

Dec 11, 2025 · To know if a relation is a function, just examine the inputs and outputs. When you’re given a set of ordered pairs, check whether any inputs have multiple outputs. If so, the relation is not …

Sep 29, 2021 · In order to know if a function is a function when looking at graph, we perform something called a Vertical Line Test. All we must do is draw a vertical line, if the line hits the graph one time, …

Watch this video to see how to determine if a graph is representing a function. In this video, we will look at inputs and outputs and use the vertical line test.