Domain/Range/Function/f(x) notation

Multiple Choice

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

Multiple Choice

A relation where every input yields one and only one output is called what?

• Relation
• Linear
• Exponential
• Function

Multiple Choice

All of the x values or inputs are called what?

• Domain
• Range
• Relation
• Function

Multiple Choice

All of the y values or outputs are called what?

• Domain
• Range
• Relation
• Function

Multiple Choice

Which of the following is not a function?

• {(0,1), (1,2), (2,3), (3,4)}
• {(0,2), (1,3), (4,3), (1,2)}
• {(1,3), (4,2), (2,0), (3,4)}
• {(1,2), (2,2), (3,2), (4,2)}

Multiple Choice

Is this a function? 

• Yes
• No

Multiple Choice

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

Multiple Choice

Is this graph a function or not a function? 

• Function
• Not a Function

Multiple Choice

Is this table a function or not a function? 

• Function
• Not a Function

Multiple Choice

• Function
• Not a Function

Multiple Choice

What is the Domain?

• {-3, -1, 1, 3, 5, 7, 9}
• {-3, -2, -1, 0, 1, 2, 3}
• -3 ≤ x ≤ 3
• -3 ≤ x ≤ 9

Multiple Choice

What is the Range?

• y ≥ 6
• y ≤ 6
• -10 ≤ y ≤ 6
• -10 ≤ x ≤ 6

Multiple Choice

What is the Domain?

• -10 ≤ y ≤ 6
• y ≤ 6
• -10 ≤ x ≤ 6
• All Real Numbers

Multiple Choice

What is the Domain?

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

Multiple Choice

What is the Range?

• -3 ≤ y < 2
• -3 < y ≤ 2
• -7 ≤ y ≤ 2
• -7 ≤ y < 2

Multiple Choice

How would you write y = 2x - 3 in function notation?

• y = 2x-3

• f = 2x - 3

• f(x) = 2x-3

Multiple Choice

If f(x) = 2x + 1, what would be your first step to find f(1)?

• Plug a 1 in for all the x's

• Set the function equal to 1

• Only plug a 1 into the left side

• Only plug a 1 into the right side

Multiple Choice

If a question asks you to find f(2), what does that mean?

• Let x = 2

• Let y = 2

Multiple Choice

If f(x) = 2x + 1, find f(1).

• f(1) = 1

• f(1) = 4

• f(1) = 0

• f(1) = 3

Multiple Choice

Evaluate f(-2) if f(x) = x + 3

• -1
• 1
• 5
• -5

Multiple Choice

What is  $$f\left(0\right)$$   for the function $$f\left(x\right)=2x+3$$  

• 2x

• -3

• 3

• 10

Multiple Choice

$$Given\ f\left(x\right)=\frac{3}{2}x+5\ what\ is\ f\left(12\right)?$$  

• $$\frac{43}{2}$$  

• $$20$$  

• $$23$$  

• $$5$$