Formal Definition of a Function

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Objectives

Students know that a function assigns to each input exactly one output.
Students know that some functions can be expressed by a formula or rule, and when an input is used with the formula, the outcome is the output.

Prior Knowledge

AlgebraLinear Equations
GeometryGraphs

45 mins 8.F.A.2 8.F.A.1 8.F.A.3

EngagyNY Curriculum by engageny, used under CC-BY-SA 3.0