Working With Parallel And Perpendicular Lines

in math •  6 years ago 

When two linear graphs are parallel, they have the same gradient. When two linear graphs are perpendicular (at 90 degrees), if we multiply the two gradients, the result is -1. These facts allow us to carry out a lot of work with parallel and perpendicular linear graphs...

math education graphs algebra steemschools
6 years ago by

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