3.1 Functions

Does the following set of ordered pairs represent a function?
 $\left\{\left(1,\ -2\right),\ \left(2,\ 1\right),\ \left(3,\ 6\right),\ \left(4,\ 13\right),\ \left(5,\ 22\right)\right\}$  

• Yes, it represents a function because each input is paired with exactly one output.

• No, it does not represent a function because not every input is paired with exactly one output.

• Yes, because the x-value 1 has two y-values paired with it.

• No, because the x-value 1 has two y-values paired with it.

Tags

CCSS.8.F.A.1

Does the table below represent a function?

• Yes, it represents a function because each input is paired with exactly one output.

• No, it does not represent a function because not every input is paired with exactly one output.

Tags

CCSS.8.F.A.1

What is the domain of the table below?

•  $\left\{0,\ 1,\ 16\right\}$  

•  $\left\{-2,\ -1,\ 0,\ 1,\ 2\right\}$  

•  $\left\{0,\ 1,\ 2\right\}$  

•  $\left\{-16,\ 0,\ 1\right\}$  

Tags

CCSS.HSF.IF.B.5

CCSS.HSF.IF.A.1

CCSS.HSF.IF.B.4

CCSS.HSF.IF.A.2

Does the following set of ordered pairs represent a function?
 $\left\{\left(7,\ 4\right),\ \left(5,\ -1\right),\ \left(3,\ -8\right),\ \left(1,\ -5\right),\ \left(3,\ 6\right)\right\}$  

• Yes, it represents a function because each input is paired with exactly one output.

• No, it does not represent a function because not every input is paired with exactly one output.

• Yes, because the x-value 3 is paired with two y-values.

• No, because the x-value 3 is paired with two y-values.

Tags

CCSS.8.F.A.1

Does the graph below represent a function?

• Yes, it represents a function because each input is paired with exactly one output.

• No, it does not represent a function because not every input is paired with exactly one output.

Tags

CCSS.HSF.IF.B.5

CCSS.HSF.IF.A.1

What are two other ways to describe the domain?

• y-values

• x-values

• Output values

• Input values

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

What are two other ways to describe the range?

• y-values

• x-values

• Output values

• Input values

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

What is the domain of the graph below?

• $-4<x<2$

• $2<y<6$

• $-4\le x\le2$

• $2\le y\le6$

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

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

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

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.

Tags

CCSS.8.F.A.1