Proportional vs Additive Relationships

Which equation matches the table?

• y = x + 5

• y = 5x

• y = x - 5

• x = y - 5

Which equation matches the table?

• y = x 

• y = 5x

• y = x - 4

• y = x + 4

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

• A

• B

• C

• D

Which label best describes the dependent quantities shown in the table?

• Number of tickets (t)

• Cost (c)

Two quantities are ​ (a)   if the ratios comparing them are equivalent.

• proportional

• nonproportional

• constant of proportionality

• proportion

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

Which graph is proportional?

• A

• B

• C and D

• All of the graphs are proportional

Which graph is non-proportional?

• A

• B

• C

• D