Question

Which of the following graphed relations does not represent a function?

Answer 1

Solution: Third option

Analysis

We can use the vertical line test. If the curve touches the vertical line at only one point, then it is a function. If the graph touches the vertical line at more than one point, then it is not a function.

In this case, if we see the graph, it touches the vertical line at more than one point where X is greater than 0. So, it's not a function,