← Algebra Course
UNIT 13 · LESSON 2

Domain restrictions

Extend fraction ideas to algebraic expressions.

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 Domain restrictions from the idea itself instead of asking you to memorize a rule first.

Places this kind of mathematics can appear:

rates of work
speed relationships
electrical formulas
engineering ratios
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