Watch this video to learn how to use the distance formula to calculate the distance between two points on a graph when you know the coordinates of both points. [1:45]

This video teaches how to determine if an expression is a linear equation; and how to graph a linear equation. [1:35]

Linear relationships can help us illustrate real-life relationships such as breakeven points, cost of goods sold to profits, sales to profit, and many more. This video walks you through word problems on linear relationships. [0:41]