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Given the linear function , find the new expression for each part below and describe the transformation. .

  1. Substitute for . Then simplify.
    When you graph the original function and the new one,
    what changed from the first to the second?

    It was shifted up .

  1. Substitute for in .
    Then simplify.

    Slope becomes twice as steep.

  1. It was shifted left .

Use the graphs on the eTool below for help with this problem.
Click on the link at right for the full eTool version: CCA 11-4 HW eTool