In this lesson on graphing, the focus is on finding the slope of a line passing through two points by using the algebraic formula for slope. The instructor provides several examples to illustrate the formula, emphasizing the importance of the order in which the ordered pairs are entered and the need to simplify the final answer. The lesson also includes a reminder that a slope of zero indicates a horizontal line, while an undefined slope indicates a vertical line.
Continuation of the ideas from Graphing 11: More examples showing how to find the slope of a line passing through two points by using the algebraic formula for slope. This is part 12 of a series of videos about graphing lines.
More free YouTube videos by Julie Harland are organized at http://yourmathgal.com