NC Math 1 - NC.M1.G-GPE.5
Use coordinates to compare slopes, classify lines, and write equations of parallel or perpendicular lines.
Click two points on each line. The slope triangles will appear automatically. Then enter each slope and classify the relationship.
Green line: Choose 2 green points.
Red line: Choose 2 red points.
Choose whether each pair of lines is parallel, perpendicular, or neither.
Enter the slope and y-intercept for each new line. Use fractions like 1/2 when needed.
Fill in the blank: Perpendicular nonvertical lines have slopes that are ______ ______ because their product is -1.