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Home > CCA2 > Chapter 2 > Lesson 2.1.1 > Problem 2-9

2-9.

Write the equation for each graph.

  1. Decreasing line passing through the points (negative 6, comma 0), & (0, comma negative 4).

    What is the -intercept? Pick two points and determine the slope.

  1. Horizontal line passing through the point (1, comma 2).

    Refer to part (a).

  1. Vertical line passing through the point (2, comma 3).

    Which value ( or ) is equal to on this line? (Look at the point.)

    All vertical lines have undefined slope and an equation of the form .

  1. Increasing line, passing through the points (4, comma 0) & (7, comma 2).

    Refer to part (a).

Use the eTool below to check your answers by graphing your equation.
Click the link at right for the full version of the eTool: CCA2 2-9 HW eTool

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