Perpendicular Lines

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Understanding and Mastering Perpendicular Lines and How to Draw Them

Understanding and Mastering Perpendicular Lines and How to Draw Them

Perpendicular lines meet at 90 degrees, and on a graph their slopes are negative reciprocals. Parallel lines never meet and have equal slopes, which is the algebraic test for each. Worked examples: drawing perpendicular lines Practice questions on perpendicular lines Draw a line (EF). Now, without using a protractor, can you draw a line (GH) […]

How to Write Equation of Parallel and Perpendicular Lines?

How to Write Equation of Parallel and Perpendicular Lines?

Algebra 1 Parallel and Perpendicular Lines Two slope facts unlock this topic: parallel lines have the same slope, and perpendicular lines have slopes that are negative reciprocals (their product is \(-1\)). With those, you can write a line parallel or perpendicular to any given line. We’ll do both, with a solver, practice, and a worksheet […]

Parallel, Perpendicular, and Intersecting Lines

Parallel, Perpendicular, and Intersecting Lines