Constant Rate of Change

The graph represents the linear relationship between the number of books Layla has read and the number of months she has been a member of a book club. (7.4A)

• Layla has read 2 books in the first 3 months she was a member of the book club.

• Layla has read 3 books in the first 2 months she was a member of the book club.

• Layla has read 3 books in the first 4 months she was a member of the book club.

• Layla has read 4 books in the first 3 months she was a member of the book club.

A dolphin travels through the water of a speed of 25 kilometers per hour. Which representation shows the distance a dolphin can travel at this rate? (7.4A)

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Frank and his family drove 6 hours every day during a road trip. Which graph best represents y, the total number of hours driver in x days?

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Write the equation for the table given

• y = 1/3x
• y = 3x
• y = 1/2x

What is the constant rate of change for this table?

• $1/9 per hour

• $9 per hour

• $8 per hour

Write an equation for this situation.

• y = 9.75x
• y = 19x
• y = 19.25x
• y = 9.5x

A store sees 120 customers in 8 hours. What is the unit rate (in customers per hour)?

• 16 customers per hour
• 15 customers per hour
• 12 customers per hour
• 20 customers per hour

Which table represents a situation with a rate of change of 5?

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• The information in the table has a constant rate of change of 3.5.

• The information in the table has a constant rate of change of 2.

• The information in the table has a constant rate of change of 7.

• The information in the table does not have a constant rate of change.

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 3 hours worked