Multiple Representations of Relations

Does the table show a proportional relationship? If so, what is the constant rate of change?

• Yes; 1/3

• Yes; 3

• Yes; 5

• No

What best describes the data on this graph?

• This graph is linear and not proportional.

• This graph is proportional.

• This graph is non-linear.

Which equation identifies the relationship in the table?

• y = 2x - 5

• y = -2x + 5

• y = 2x + 5

• y = -2x - 5

Melanie opened a savings account with $50. Each month, she deposits the same amount of money into the account. Which equation shows t, the total amount of money in the savings account after m months? Watch the scale!

• t = 50m + 50

• t = 100m + 50

• t = 150m + 50

• t = 75m + 50

Which rate of change represents the following graph?

• 4 bracelets per girl

• 3 bracelets per girl

• 0.25 bracelets per girl

• 2 bracelets per girl

Which equation matches the graph? 

• y = 3x 

• y = x + 3

• y = ⅓x

• y = x - 3

Which equation matches the table? 

• y = x + 4

• y = 5x

• y = x - 4

• y = x + 16

Which statement below accurately represents the graph?

• $100 is earned for each hour worked

• $100 is earned for every 2 hours worked

• $500 is earned for every 8 hours worked

• $200 is earned for every 4 hours worked

• y = 5x
• y = x + 5
• y = x + 470
• y = 94x 

A 7-inch candle burns at a rate of 2 inches per hour. Which equation represents the relationship between y, the height of the candle in inches, and x, the number of hours the candle burns?

• y = 2x + 7

• y = 7 - 2x

• y = 2 - 7x

• y = 7x + 2