Domain and Range

​Time to Exercise our Brain.

We all can all learn!!!!!!!​

​Domain and Range

​Standard: MA.8.AR.3.1 Determine if a linear relationship is also a proportional relationship.

Focus: Determine if linear, proportional, domain and range.

: Instruction includes the representation .of relationships using tables, graphs, equations

and written descriptions.

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Goal: I will be able to determine the Domain and Range.​

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Multiple Choice

Find the unit rate.

18 orders in 3 days = ________ orders per day

• 3

• 9

• 6

• 8

Multiple Choice

Does this graph represent a proportional relationship?  

• No, because it doesn't pass through the origin.
• Yes, because it doesn't pass through the origin.
• Yes, because it intersects the y axis.
• No, because it intersects the x axis.

Multiple Choice

Is the given table a proportional relationship? If so, what is the constant of proportionality?

• Yes; X=1/3

• No

• Yes; X=3

• Yes; X=5

Multiple Choice

Does this equation represent a proportional relationship?

• Yes

• No

Multiple Choice

What is the constant of proportionality? 

• 2

• 10

• 5

• 1/5

D = {-3, -1, 1, 4, 5}​

Order doesn't actually matter, but often you'll see least to greatest.

Domain is the set of X values

R = {-5, 0, 2, 6}

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Don't repeat the 2​

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Range is the set of Y values

Open Ended

What is the domain of this chart of values?

Domain (X) = {-1, 0, 1, 2, 3}

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Range (Y) = {1, 2, 3}​

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​Can't remember which is which? D and R are alphabetical order and so are X and Y.

"Discrete" Function is scattered points​

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Multiple Choice

Which of these sets is the RANGE of the graph?

• {0, 6, 12, 18}

• {-2, 0, 2, 4}

• {-2, 2, 4}

• {6, 12, 18}

Multiple Choice

Which number is not an element of the domain?

• 2

• 1

• 0

• 6

Fill in the Blanks

What is the domain when the range is 3?