Functions

What is the definition of function?

• Has inputs and outputs
• Every input has only ONE output
• Inputs have different outputs every time
• x-values and y-values

Is this mapping a function or not a function? 

• Function
• Not a Function

Which ordered pair below would prevent this table from being a function?

• (10, 10)
• (2, 4)
• (6, 1)
• (-2, 0)

Tags

CCSS.8.F.A.1

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)

Tags

CCSS.8.F.A.1

Does this graph represent a function?

• Yes
• No

Does this mapping diagram represent a function?

• No, because there are repeating input values
• Yes, because there are no repeating input values

Tags

CCSS.8.F.A.1

Evaluate f(-2) if f(x) = x²+ 3

• -1
• 1
• 7
• -7

Tags

CCSS.HSF.IF.A.2

Given h(x) = 5 - 9x
Find h(8). 

• h(8) = -360
• h(8) = -67

Tags

CCSS.HSF.IF.A.2

For the function f(x) = -3x + 3 find f(0).

• 0
• -3
• 3
• -1

Tags

CCSS.HSF.IF.A.2

Is this mapping a function or not a function? 

• Function
• Not a Function 

Tags

CCSS.8.F.A.1