Identifying and Evaluating Functions

Which of the following is a function?

• 
• 
• 
• 

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CCSS.HSF.IF.A.2

CCSS.HSF.IF.A.1

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

Is the following a function?

• Yes, this is a function.

• No, it's not a function.

• Can't be determined with this information.

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CCSS.8.F.A.1

Which of the following is a function?

• A

• B

• C

• D

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CCSS.8.F.A.1

Is the following graph a function?

• Yes, because the x never repeats.

• Yes, because they are individual dots.

• No, because the x repeats.

• No, because it is not a line.

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CCSS.HSF.IF.A.1

CCSS.HSF.IF.B.5

Is this a function or not a function?

• Function
• Not a Function

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CCSS.HSF.IF.A.1

CCSS.HSF.IF.B.5

CCSS.HSF.IF.B.4

Is this is a function or not a function?

• Function
• Not a Function

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CCSS.8.F.A.1

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

How do you determine if a relation is a function? 

• The vertical line test crosses more than one point on the graph.
• The same y-values are mapped from the same x-values.
• The vertical line test crosses only one point on the graph.
• Each input is related to more than one output.

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CCSS.HSF.IF.A.1

• Function
• Not a Function

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CCSS.HSF.IF.A.1

CCSS.HSF.IF.B.5

CCSS.HSF.IF.B.4

• Yes
• No

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CCSS.8.F.A.1