TEKS.MATH.8.5G

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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TEKS.MATH.8.5G

All of the x values or inputs are called what?

• Domain
• Range
• Relation
• Function

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TEKS.MATH.8.5G

Is this mapping a function or not a function? 

• Function
• Not a Function

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TEKS.MATH.8.5G

Is this graph a function or not a function? 

• Function
• Not a Function

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TEKS.MATH.8.5G

All of the x values or inputs are called what?

• Domain
• Range
• Relation
• Function

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TEKS.MATH.8.5G

For the function {(0,1), (1,-3), (2,-4), (-4,1)}, write the domain and range.

• D: {1, -3, -4,}
  R: {0, 1, 2, -4}
• D: {-4, 0, 1, 2}
  R:{-4, -3, 1}
• D: {0, 1, 2, 3, 4}
  R:{1, -3, -4}
• D: {0, 1, 2, -4}
  R: {1, -3, -4, 1}

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TEKS.MATH.8.5G

The y-values of a relation.

• Domain
• Range
• Input
• Vertical Line Test

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TEKS.MATH.8.5G

When each input of a relation has exactly one output, the relation is known as this.
(x does NOT repeat)

• Function
• Output
• Domain
• Vertical Line Test

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TEKS.MATH.8.5G

What is the domain?

• {-4, -1, 0, 2, 7}
• {-5, -4, -1, 0, 1, 2, 4, 7}
• {-5, 0, 1, 2, 4}
• {5}

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TEKS.MATH.8.5G

How do you administer a vertical line test.

• You don't only doctor's are allowed to do those
• Draw lines straight across your graph and see if any hit the graph more than once
• Draw lines straight down your graph and see if any hit the graph more than once
• Check to see if the graph is a vertical line( straight up)

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TEKS.MATH.8.5G