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Home > MC2 > Chapter 9 > Lesson 9.1.2 > Problem 9-19


The choir is planning a trip to the water park. The cost to use a school bus is . Complete the table below, graph your result, then answer parts (a) and (b). ).

Number of Students on the Trip

Bus Cost per Student

For each number in the table, divide by the number of students to find how much the bus will cost for each student going on the trip.

  1. Is this a proportional relationship?

    Does the cost for each student stay the same as the number of students increase?

    No, as the number of students increase, the cost of the bus per student decreases.
    Therefore, this is not a proportional relationship.

  2. Is there a correlation? How do you know? If so, what is it?

    Describe the characteristics of the graph of these data points.

Complete the table in the eTool below to graph the results.
Click the link at right for the full version of the eTool: MC2 9-19 HW eTool