Identifying Relations as Functions

Look at the image

Does it represents a function?

(hint: look at the arrows)

• Yes

• No

Tags

CCSS.8.F.A.1

A function is a relation.

• True

• False

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

• 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.8.F.B.4

CCSS.HSF.LE.A.2

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

Is this a function?  (a)  

The domain is​ (b)  

The range is​ (c)  

• Yes

• No

• {-1, 0, 1, 2, 3}

• {-1, 1, 2, 3}

• {1, 2, 3}

• {0, 1, 2, 3}

Tags

CCSS.8.F.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

Which relation shows a function?

• A

• B

• C

• D

Tags

CCSS.8.F.A.1

Select all the relations that represent a function

Tags

CCSS.8.F.A.1

Is this a function?  (a)  

The domain is​ (b)  

The range is​ (c)  

• Yes

• No

• {-1, 0, 1, 2, 3}

• {-1, 1, 2, 3}

• {1, 2, 3}

• {0, 1, 2, 3}

Tags

CCSS.8.F.A.1

Which relation shows a function?

• A

• B

• C

• D

Tags

CCSS.8.F.A.1