03 - The Slope of a Line, Part 1 (Slope Formula, Find the Slope, Undefined Slope & More)

Get more lessons like this at http://www.MathTutorDVD.com. In this lesson, you will learn how to find the slope of a line. We will learn what the slope physically means, including its meaning when we have an undefined slope (vertical line), or a zero slope (horizontal line). We will work many problems to calculate the slope and interpret the results.