This video demonstrates how to find the slope of two points that when graphed create a vertical line. The video uses the slope formula to demonstrate that the slope of a vertical line is zero. [5:05]

This video demonstrates how to find the slope of a line given the graph of the line. The video uses a formula and demonstrates how to find the slope with several sets of points on the line. It shows that the slope is the same no matter...

This video demonstrates how to calculate the slope of a line given two points from the line. Once the slope is calculated using the slope formula, the video shows how to check your answer by graphing the two points and checking the slope...