← Algebra Course
UNIT 8 · LESSON 2

Opening Up or Down

See quadratic equations as curves and understand their key features.

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 Opening Up or Down from the idea itself instead of asking you to memorize a rule first.

Places this kind of mathematics can appear:

projectile motion
satellite dishes
headlights
architecture
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