CCSS.Math.Content.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.Math.Content.8.F.A.1

CCSS.Math.Content.HSF.IF.A.1

Does the table represent a function?

• Yes, there  is a repeated x-value. 
• No, there aren't any repeated y-values. 
• Yes, there are repeated y-values. 
• No, there is a repeated x-value. 

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CCSS.Math.Content.8.F.A.1

Consider the function:
{(3,11),(4,18),(5,27),(6,38)}
What is the Domain?

• {4,11,5,18}
• {3,11,4,18}
• {3,4,5,6}
• {11,18,27,38}

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CCSS.Math.Content.8.F.A.1

Is this mapping a function or not a function? 

• Function
• Not a Function

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CCSS.Math.Content.8.F.A.1

CCSS.Math.Content.HSF.IF.A.1

Give the domain and range. Tell if it is a function.

• D: {-4, -2, 0, 2}
  R: {-2, -2, 1, 1}
  Function
• D: {-4, -2, 0, 2}
  R: {-2, 1}
  Function
• D: {-4, -2, 0, 2}
  R: {-2, -2, 1, 1}
  Not a Function
• D: {-4, -2, 0, 2}
  R: {-2, 1}
  Not a Function

Tags

CCSS.Math.Content.8.F.A.1

Does the graph represent a function?

• Yes, because the vertical line test shows there are no repeating input values
• No, because the vertical line test shows there are repeating input values

Tags

CCSS.Math.Content.8.F.A.1

Identify the Range

• (- ∞, -2 ]
• [ -2, ∞ )
• All Real Numbers
• [ 0, ∞)

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CCSS.Math.Content.8.F.A.1

Which graph matches:
4-x for x<2
2x-6 for x>=2

• A
• B
• C
• D

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CCSS.Math.Content.8.F.A.1

Joseph's candy bars cost $1.25 each. Which function can be used to to find t, the total cost of c candy bars.

• t = $1.25c

• t = $1.25

• t = $1.25c + 0

• t = $1.25/10

Tags

CCSS.Math.Content.8.F.A.1

How do you read f(x)?

• f x

• f of x

• f parenthesis x

• f with an x inside parenthesis

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CCSS.Math.Content.8.F.A.1