Evaluating and Identifying Functions

Evaluate f(x) = x² for f(-8)

• 64

• -64

• -16

• 16

Evaluate f(x)=-2t²+ 1 for f(-3)

• 19

• 37

• -17

• -11

Evaluate f(x)=-2t²+ 1 for f(2)

• 9

• 17

• -17

• -7

Evaluate f(x) = x+3 for f(-2)

• -1
• 1
• 5
• -5

Evaluate f(x)=-2x+13 for f(-4)

• 21
• 5
• -8
• 7

Evaluate f(x)=-2x+13   for f(10)

• -7
• 1
• -8
• 7

Which set of values is a function?

• (9,5) (10,5) (9,-5) (10,-5)

• (3,4) (4,-3) (7,4) (3, 8)

• (6,-5) (7, -3) (8, -1) (9, 1)

• (2, -2) (5, 9) (5, -7) (1, 4)

Is this mapping a function or not a function?

• Function

• Not a Function

Is this table a function or not a function?

• Function

• Not a function

Is this set of ordered pairs a function or not a function?

• Function

• Not a Function