← Algebra Course
UNIT 6 · LESSON 7

Parallel and perpendicular lines

Understand constant rates of change.

WHY LEARN THIS?

This idea has a purpose.

Mathematics becomes much easier when you understand what a tool was designed to accomplish. This lesson will build Parallel and perpendicular lines from the idea itself instead of asking you to memorize a rule first.

Places this kind of mathematics can appear:

hourly wages
distance and speed
phone plans
business costs
water filling a tank
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