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

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CCSS.8.F.A.1

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.4

CCSS.HSF.IF.B.5

Is this relation a function?

• Yes
• No

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CCSS.HSF.IF.A.1

CCSS.HSF.IF.B.5

Which set of ordered pairs 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

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.4

CCSS.HSF.IF.B.5

Is this is a function or not a function?

• Function
• Not a Function

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CCSS.8.F.A.1

Which of the following is a function?

• 
• 
• 
• 

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CCSS.8.F.A.1

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

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

Which of the following is NOT a function?

• 
• 
• 
• 

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CCSS.8.F.A.1