Parallel and perpendicular lines (8th grade math/algebra 1)

We start out by graphing a bunch of lines and observing which ones of them are either perpendicular or parallel to each other, and if we see anything special about their equations. Turns out, the answer is yes.

Then we use that knowledge to graph two lines with given conditions, and the conditions include being parallel/perpendicular to another line.

See also

Horizontal and vertical lines — video lessons

Math Mammoth Grade 8 curriculum

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