In this investigation, students are asked to find the slopes of various lines. They use the slopes to come up with conjectures. Because the lines are graphed for the students, this investigation allows them to focus on the relationships between slopes of parallel and perpendicular lines.An extension
Using a free online graphing calculator, students explore relationships between linear equations, their graphs, and the slopes of the lines. By the end of this investigation, students will discover relationships between parallel lines, perpendicular lines, and their slopes. Enjoy!
There are 5 pages of problems. Each page has 6 systems to graph. One page illustrates exactly one solution that is NOT the y-intercept. One page illustrate exactly one solution that is the y-intercept. One page illustrate exactly one solution; the lines create perpendicular lines.One page illustrate