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1-27.

Examine each graph below. Based on the shape of the graph and the labels on the axes, write a sentence to describe the relationship that each graph represents. Homework Help ✎

  1. Graph

    The more gas you buy, the more money you spend.
    Gallons are independent and dollars are dependent.

  1. Graph

    People grow a lot in their early years, and then their growth slows. Age is independent and height is dependent.

  1. Graph

    As time goes by, the ozone concentration goes down, although the effect is slowing. The year is independent and the ozone is dependent.

  1. Graph

As the number of students grows, more classrooms are used and each classroom holds students.
I: students, D: classrooms.

  1. What are all of the possible inputs of the graph in part (d)? What are all of the possible outputs?

    non-negative integers