1.   What is the constant rate of change between the quantities in the table?
   
    A. 4 legs per dog B. 40 legs per dog
    C. 2 legs per dog D. 4 dogs per leg
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  2.   What is the constant rate of change between the quantities in the table?
   
    A. 5 burgers per person B. 10 burgers per person
    C. 2 burgers per person D. 20 burgers per person
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  3.   What is the constant rate of change shown in the graph?
   
    A. $10 per lawn B. $20 per lawn
    C. $16 per lawn D. $5 per lawn
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  4.   What is the constant rate of change shown in the graph?
   
    A. 0.5 lb per person B. 2 lbs per person
    C. 1 lb per person D. 0 lbs per person
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  5.   What is the constant rate of change shown in the graph?
   
    A. 15 feet per minute B. -15 feet per minute
    C. -150 feet per minute D. 150 feet per minute
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