Function Notation

Overview

Goal. Read and use function notation: evaluate f(a) for a given rule, and solve for the input that gives a stated output.

Function notation (definition). f(x), read “f of x”, is the output of the function f for the input x. The pair (x, f(x)) is a point on the graph of f.

Function notation: reading f(x), evaluating, negative inputs, finding the input.

Lesson Notes

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Notes page

Lesson Video

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Interactive Activity

Goal. Evaluate functions written in function notation — with whole, negative, and fractional rules — and find the input that produces a given output.

Function notation (definition). f(x), read “f of x”, is the output of the function f for the input x. The pair (x, f(x)) is a point on the graph of f.

Function Notation — Interactive ActivityOpen ›