Solving Proportionality

Which statement best describes the relationship between x and y in the table?

• Proportional

• Not Proportional

Which best describes the graph represented in this table?

•  proportional

• non-proportional

Which statement best describes the relationship of x and y in the table?

• Proportional

• Not Proportional

A person’s weekly pay is directly proportional to the number of hours worked. Shawn’s pay is $123.00 for 20 hours of work. Find the amount of pay for 31 hours of work. 

• $3813

• $620

• $190.65

• $4.96

Write an equation for this relationship.

• y=4x

• y=1/8x

• y=1/4x

• y=8x

 y varies directly with x, and y is 84 when x is 16. What is the constant of proportionality?

• y = (21/4)x

• k= 21

• k= 5.25

• k= 4/21

Is the given table a direct variation? If so, what is the constant?

• Yes; 1/4

• Yes; 4

• Yes; 2

• No

Trina's paycheck earnings varies directly as the number of hours she works. If she works 19 hours and earns $187.15, what should she earn if she worked 40 hours?

• $394

• $440

• $472.80

• $512.20

Which graph is non-proportional?

• A

• B

• C

• D

Which of the given graphs is a direct variation?

• A

• B

• C

• D