Matching

A telecommunications company uses a function f = {({}0, 4), ({}1, 7), ({}2, 10), ({}3, 13)} to link the number of additional data lines a business has (input) to their monthly service fee in dollars (output). To find the number of lines based on a specific bill amount, the billing department uses the inverse function f−1f^{-1}. Match each monthly bill amount (the input for f−1f^{-1}) with the corresponding number of data lines (the output for f−1f^{-1}).

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Updated 2026-09-19

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