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3-22.

For the line graphed at right: 3-22 HW eTool (Desmos). Homework Help ✎

  1. Determine the slope.

    Start by selecting two points on the line, such as and .
    Use them to find the rise and the run and then calculate the slope.

    Divide the rise, , by the run, , to determine the slope.

  2. Find the equation of the line.

    Use the -intercept for and the slope for in the equation .

3-20a HW Help Hint Graph

3-22a HW Help More Help Graph

3.1.2 3-22 Graph

Use the eTool below to help solve the problem.
Click the link at right for the full version of the eTool: CCA 3-22 HW eTool