Master how to determine if a graph is a function or not

The video tutorial explains how to determine if a graph represents a function using the vertical line test. A function is defined as a set of inputs uniquely mapped to outputs. The vertical line test is a method to check if a graph is a function by ensuring a vertical line crosses the graph at most once. Examples are provided to illustrate when a graph is a function and when it is not. The tutorial concludes with a summary of the method.

What is the significance of the X and Y axes in determining if a graph is a function?

How can you determine if a specific point on a graph uniquely maps to an output?

Summarize the key points to remember when determining if a graph is a function.