CPM Homework Help : CCG Problem 2-58

Graph the line $y=\frac{3}{4}x$ on graph paper.

Draw a slope triangle.
Rotate your slope triangle $90º$ around the origin to get a new slope triangle. What is the new slope?
Find the equation of a line perpendicular to $y=\frac{4}{3}x$ .
Hint (c):
Look at the slopes in parts (a) and (b). How are perpendicular slopes related?

Use the eTool link to graph the function, then draw and rotate a slope triangle.
Click the link at right for the full version of the eTool: 2-58 HW eTool