Functions Assessment

Evaluate f(-4) if f(x) = x + 2

• 2

• -8

• -4

• -2

Evaluate f(3) if f(x) = 4x - 6

• 6

• -18

• this is not a function

• -6

(3, 6) (5, 10) (4, 2) (8, 11)

Which set of numbers represent the domain?

• {3, 6, 11, 8}

• {3, 4, 5, 8}

• {10, 6, 2, 11}

• {3, 4, 10, 11}

Does the table represent a function?

• yes

• no

Which set of values is a function?

• (9,5) (10, 5) (9, -5), (10, -5)

• (6,5) (7, -3) (8, -1) (9, 2)

• (3,4) (4, -3) (7,4) (3,8)

• (2, -2) (5,9) (5, -10) (1, 5)

(3, 9) (10, 12) (4, 13) (6, 10)

Which set of numbers represents the range?

• {3, 4, 6, 10}

• {9, 10, 12, 13}

• {3, 10, 4, 13}

• {9, 10, 12, 3}

Which graph represents a function?

• A

• B

• C

• D

If f(x) = 20, find the value of x when f(x) = 2x - 8.

• 32

• 6

• 14

• 48