Function notation and evaluating functions

Read f(x) as an instruction, evaluate f(3), and interpret it in context.

Standards:F-IF.A.2

Try it: three questions

Real questions from the practice bank. Tap an answer to check it.

Question 1 of 3

If f(x) = 3x − 5, what is f(4)?

Question 2 of 3

Given f(x) = 3x − 5, find f(4).

Question 3 of 3

If g(x) = 2x² − 3x + 1, what is g(−2)?

How this fits in

Function notation and evaluating functions is one skill in the Linear Functions unit. Students read the unit lesson, then earn a bronze, silver, or gold medal on their last 10 answers. Medals never go down. A mastered unit comes back for review after 1, 3, 7, 16, and 35 days so it stays learned.

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