Exercises: Recognize Sequences as Functions

Work through each section in order. Show your work where indicated.

Grade 9·20 problems·~30 min·Common Core Math - HS Functions·group·hsf-if-a-3

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Recall / Warm-Up

A function assigns each element of the domain exactly one element of the range. Which of the following is a function?

A rule that maps 3 to both 7 and 9.

The relationship $\{(1, 4), (2, 7), (3, 10)\}$ .

A rule where input 5 has no output.

A rule that maps every input to 0 outputs.