Identifying Relations & Functions

What is a relation?

• The Input Variable

• The Output Variable

• Goes between the Domain and Range

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Yana is 5 years older than Mark

What is the relation if Mark is represented by x?

• 5x

• 5 + x

• 5 - x

• x - 5

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

A function is a relation.

• True

• False

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

The Domain is the same as the Range

• True

• False

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Which of the following is true about the Domain?

Select all that apply

• Often represented by X

• The input variable

• The output variable

• Often represented by Y

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Henry is 5 years younger than Tinashe

What is the relation if Tinashe is represented by x?

(remember the big number comes first when subtracting)

• 5x

• 5 + x

• 5 - x

• x - 5

Tags

CCSS.6.EE.C.9

What is the range?

• 5

• 3

• 6

• 2

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Look at the image

Does it represents a function?

(hint: look at the arrows)

• Yes

• No

Tags

CCSS.8.F.A.1

Which scenario is described by the function:

 $y=3+x$  

• Timothy (y) is taller than his son (x) three times

• A marble (x) is one third the weight of a rock (y).

• Destiny (y) is 3 years younger than Roy (x)

• Haley (y) has 3 more apples than Tanya (x)

Tags

CCSS.6.EE.C.9

Young Sway is said to have four times more fans than Trey Clay.

If Young Sway is represented as y, and Trey Clay is x, what is the function?

• y= 4x

• x = 4y

• y = 4 + x

• y = 4 - x

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2