1.   What is the constant rate of change between the quantities in the table?
   
    A. -2 gal per minute B. -10 gal per minute
    C. -20 gal per minute D. 2 gal per minute
    Hint

  2.   What is the constant rate of change between the quantities in the table?
   
    A. 2 burgers per person B. 10 burgers per person
    C. 20 burgers per person D. 5 burgers per person
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  3.   What is the constant rate of change shown in the graph?
   
    A. 6 B. 3
    C. 5 D. 4
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  4.   What is the constant rate of change shown in the graph?
   
    A. 1 lb per person B. 0 lbs per person
    C. 2 lbs per person D. 0.5 lb per person
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  5.   What is the constant rate of change shown in the graph?
   
    A. -15 feet per minute B. -150 feet per minute
    C. 15 feet per minute D. 150 feet per minute
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