Defining Linear Functions by Comparing Graphs

The video tutorial explains the concept of functions, focusing on linear functions and their properties. It covers how to plot points on a coordinate plane, the characteristics of linear functions, and how to distinguish them from nonlinear functions. The tutorial includes practical examples to help identify whether a function is linear or nonlinear by plotting points and analyzing graphs.

Why are vertical lines not considered linear functions?

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What can you conclude about a function if the points plotted do not form a straight line?

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