domain/range and functions/relations

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

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Give the range of the set of ordered pairs: (2, 11), (9, -3), (7, 21), (-8, 6)

• {2, 9, 7, -8}

• {11, -3, 21, 6}

• -8 < x < 9

• -3 < y < 21

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

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

• Function
• Not a Function 

Tags

CCSS.8.F.A.1

Is this graph a function or not a function? 

• Function
• Not a Function

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.B.4

CCSS.HSF.IF.B.5

• Function
• Not a Function

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.A.2

CCSS.HSF.IF.B.4

CCSS.HSF.IF.B.5

Is this graph a function or not a function? 

• Function
• Not a Function 

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.B.5

Is this mapping a function or not a function? 

• Function
• Not a Function

Tags

CCSS.8.F.A.1

Evaluate 2x + 1 if x = 3

• 6

• 5

• 7

• 8

Tags

CCSS.HSA.SSE.A.1

CCSS.HSF.IF.A.1

CCSS.HSF.IF.A.2

If a question asks you to find f(2), what does that mean?

• Let x = 2

• Let y = 2

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.A.2

If f(x) = 2x + 1, find f(1).

• f(1) = 1

• f(1) = 4

• f(1) = 0

• f(1) = 3

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.A.2