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Functions

A function is a machine: one input, one output.

M5 · Mastery
Name: ______________________________ Class: ____________ Date: ____________

Loxivia · Oct 16, 2026 · 8 questions

Warm-up

  1. The function machine — A function is a machine: one input, one output.
  2. Functions — practice 1 — Answer the quick questions.
  3. Functions — practice 2 — Answer the quick questions.
  4. Functions — practice 3 — Answer the quick questions.
  5. Functions — practice 4 — Answer the quick questions.

Practice

  1. 1. f(x) = 2 x + 8. What is f(4)? (Functions)

    a) 16 b) 14 c) 18 d) 8

  2. 2. f(x) = 3 x + 8. What is f(4)? (Functions)

    a) 12 b) 23 c) 15 d) 20

  3. 3. f(x) = 3 x + 5. What is f(7)? (Functions)

    a) 29 b) 26 c) 21 d) 15

  4. 4. f(x) = 5 x + 4. What is f(2)? (Functions)

    a) 19 b) 14 c) 11 d) 10

  5. 5. f(x) = 5 x + 6. What is f(5)? (Functions)

    a) 36 b) 25 c) 16 d) 31

  6. 6. f(x) = 2 x + 9. What is f(6)? (Functions)

    a) 17 b) 12 c) 23 d) 21

  7. 7. A square has 4 lines of symmetry. (Functions)

    a) False b) True

  8. 8. Every prime number is odd. (Functions)

    a) False b) True

Answer key

1. 16 2. 20 3. 26 4. 14 5. 31 6. 21 7. True 8. False

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