Back to Determine explicit or recursive expressions — Problem 3 · Task Set 29

HSF.BF.A.1.a Tutor Intake — Explicit, Recursive, and Procedural Representations

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Grade 9·11 problems·~14 min·Common Core Math - HS Functions·standard·hsf-bf-a-1a

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Concepts

A phone plan charges $\text{\char"0024}30$ for up to 2 GB of data, then $\text{\char"0024}10$ for each
additional gigabyte, plus $\text{\char"0024}0.05$ per text message. Which representation
fits this situation best?

An explicit formula with a single expression

A recursive process using the previous month's bill

A procedural description — a series of calculation steps

A table of values listing all possible bills