Exploring Functions and Function Notation

What is the key difference between a function and an equation?

• A function has multiple outputs for each input.

• An equation has multiple outputs for each input.

• An equation has one output for each input.

• A function has one output for each input.

Tags

CCSS.8.F.A.1

Which of the following is true about a function?

• It can have multiple outputs for a single input.

• It must have exactly one output for each input.

• It can have no outputs for some inputs.

• It must have multiple outputs for each input.

Tags

CCSS.8.F.A.1

If a function has an input of 8 and an output of 4, how is it represented?

• (-8, 4)

• (4, 8)

• (8, 4)

• (8, -4)

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

What does f(x) represent in function notation?

• The variable x itself.

• The function that uses the variable x.

• The input of the function.

• The output of the function.

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

How would you write the function that uses the variable 'a'?

• f(x)

• f(a)

• g(x)

• g(a)

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

When using function notation, what is typically the input variable?

• f

• g

• y

• x

Tags

CCSS.HSF.IF.A.1

CCSS.8.F.A.1

If f(x) = 3x + 4, what is f(5)?

• 20

• 19

• 15

• 23

Tags

CCSS.HSF.IF.A.2

Given f(x) = 3x + 4, what is the output when the input is 9?

• 30

• 28

• 27

• 31

Tags

CCSS.HSF.IF.A.2

In the equation y = 2x - 18, what is y when x is 1/2?

• -14

• -16

• -17

• -15

Tags

CCSS.HSF.IF.A.2

For the equation y = 2x - 18, what is the ordered pair when x is 10?

• (2, 10)

• (20, 10)

• (10, 2)

• (10, 20)

Tags

CCSS.6.EE.C.9