Functions

Relations of two or more sets in which each input corresponds to exactly one output.

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

Functions

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CK-12 Calculus Study Guide - Functions

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• PLIX

The Vertical Line Test

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Functions Interactive
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• Video

Vertical Line Test

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Watch this YouTube video giving step-by-step instructions of the vertical line test.
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• Real World Application

Mind the Gap

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Find out how student test scores relate to family income.
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