Proportional vs Additive Relationships

Write the equation for the table given

• y = 1/3x

• y = 3x

• y = -1/3x

• y = -3x

Ollie sells bracelets for two dollars each and donates the money he collects to a charity. Find the relation between the total number of bracelets sold and the amount of money donated to charity, and the equation that matches it.

• y = x + 2

• y = 2x

• y = 4x

• y = x + 4

Which graph is proportional?

• A

• B

• C and D

• All of the graphs are proportional

Which graph is non-proportional?

• A

• B

• C

• D

• A

• B

• C

• D

Two quantities are in a ​ (a)   if the two quantities vary and have a constant ratio between them.

• proportional relationship

• proportional

• unit rate

• nonproportional

• constant of proportionality

Does this graph represent a proportional relationship?

• Yes, because the line is pretty.

• No, because the line goes through the origin.

• Yes because the line goes through the origin.

• No, because the graph is non-proportional.

Which equation matches the table?

• y = x + 5

• y = 5x

• y = x - 5

• x = y - 5

What is the function of the table?

• y=2x

• y=x+2

• y=x/2

• y=x-2

• ADDITIVE

• PROPROTIONAL

• BOTH

• NEITHER