Unit 1 Review

What is the domain of the graph?

• -3 ≤ x ≤ 3
• 3 ≤ x ≤ -3
• -2 ≤ x ≤ 10
• -3 ≤ x ≤ 10

What is the range of the graph?

• -2 < y < 10
• -3 < x < 3
• -2 ≤ y ≤ 10
• -3≤ x ≤ 3

Is this mapping a function and how can you tell?

• Yes its a function cause all the numbers have lines

• No it's not a function because there a 5 in both ovals

• No it's not a function because the x value 5 has 2 outputs.

• No it's not a function because the y value 5 has 2 inputs.

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 2 outputs.

Find the Range.

• All Real numbers
• 0 < y < 11
• y ≥ 0
• y > 0

What is the Domain?

• -3 ≤ x < 5
• -3 ≤ y < 5
• -8 ≤ x < 5
• -8 ≤ y < 5

What is the domain of this function?

• 1 ≤ f(x) ≤ 7
• 1 ≤ x ≤ 7
• -3 ≤ f(x) ≤ 3
• -3 ≤ x ≤ 3

What is the range of the following graph?

• R:  {-5, -1,  0 , 1, 5}
• R:  {-4, -2, 0, 3, 6}
• R: (-4, 1)  ( 6, 0)
• R: (6, 0)

Is the relation a function? Why.

• Yes, because the x-value 11 has two y-values pair 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.

What is the Domain of this linear function?

• -6 ≤ x ≤ 6, real numbers

• 0 ≤ x ≤ 7, integers

• 2 ≤ x ≤ 7, real numbers

• No Solution