Lesson 4: Parallel and Perpendicular Lines
Words to Know
Parallel Lines: have the same slope
Perpendicular Lines: have opposite reciprocal slopes
Perpendicular Lines: have opposite reciprocal slopes
Examples
2. Perpendicular Line Through a Given Point
Video
Video
Tips
Extra Examples
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Problems of the Day
1. Determine whether the graphs of the following equations are parallel or perpendicular:
2x - 8y = -24, 4x + y = -2, x - 4y = 4
2. Write an equation in slope-intercept form for a line perpendicular to the graph of the equation that passes through y = -1/2x - 4.
2x - 8y = -24, 4x + y = -2, x - 4y = 4
2. Write an equation in slope-intercept form for a line perpendicular to the graph of the equation that passes through y = -1/2x - 4.