Unit 4 Review

Is this mapping a function or not a function? 

• Function
• Not a Function

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)

Is the relation a function? Why.

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

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

Which one is a function?

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Which graph does NOT pass the vertical line test?

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

Is this table a function and how can you tell?

• Yes its a function because there are not variables for missing numbers
• No it's not a function because the y value 4 repeated
• No it isn't a function because the x value 2 is repeated
• No it's not a function because the x value 5 has y values of  10 & 12

What is the domain & range of the set of ordered pairs below?

{(2, 3),(0, 6),(- 2, 9),(4, 0)}

• D: {0, 3, 6, 9}

  R: {2 , 0, -2, 4}

• D: {2, -2, 4, 0}

  R: {2, -2, 4, 0}

• D: {-2, 0, 2, 4}

  R: {0, 3, 6, 9}

• D: { 2, 0, 4}

  R: {3, 6, 9, 0}

What is the domain & range of the table?

• D: {-3, -2, -1, 0, 1}

  R: {5, 2, -1, -4, -7}

• D: {-3, 5, -2, 2}

  R: { 5, 2, -4, -7}

• D: {-7, -4, -1, 2, 5}

  R: {-3, -2, -1, 0, 1}

• D: {5, 2, -1, -4, -7}

  R: {3, -2, -1, 0, 1}

Find the Domain

• All Real numbers

• -3 < x < 11

• x ≥ 0

• x > 0

Which of the following is NOT a function?

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