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Home > MC2 > Chapter 8 > Lesson 8.1.2 > Problem 8-25


Use the graph below to answer the questions below.

  1. Create a table of values for the line on the graph such as the one started below. Include at least entries.

    Choose a few -coordinates that can be seen in the graph. Estimate their -coordinates.
    Notice the scaling of the graph.

  1. What is the slope of the line?

    Notice that since the line slopes downward, its slope will have a negative value.

  2. Write an equation (rule) for the line.

    Try looking for a pattern.

    Notice that at the -coordinate is .
    Try writing an equation, and then check your answer by substituting points found in (a).