Intro to Functions RETAKE

Is the relation a function? Why?

• Yes, because the x-value 11 has two y-values pair with it.

• Yes, because each x-value has only one y-value paired with it.

• No, because the x-value 11 has two y-values pair with it.

• No, because each x-value has only one y-value paired with it.

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CCSS.HSF.IF.A.1

CCSS.HSF.IF.B.5

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)

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CCSS.8.F.A.1

• Function

• Not a Function

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CCSS.HSF.IF.A.1

CCSS.HSF.IF.A.2

CCSS.HSF.IF.B.4

CCSS.HSF.IF.B.5

Is this mapping diagram a function or not a function?

• Function

• Not a Function

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CCSS.HSF.IF.A.1

Is this graph a function or not a function? 

• Function
• Not a Function

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CCSS.HSF.IF.A.1

CCSS.HSF.IF.B.5

Is this graph a function or not a function? 

• Function 
• Not a Function

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CCSS.HSF.IF.A.1

CCSS.HSF.IF.B.5

Which graph does NOT pass the vertical line test?

• Graph 1
• Graph 2
• Graph 3
• Graph 4

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CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

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

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CCSS.8.F.A.1

CCSS.HSF.IF.A.1

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

• -1
• 1
• 5
• -5

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CCSS.HSF.IF.A.1

CCSS.HSF.IF.A.2

Given f(x) =
2x² + 5x - 17, find f(-1). 

• f(-1) = -20
• f(-1) = -24

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CCSS.HSF.IF.A.1

CCSS.HSF.IF.A.2