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1-21.

Given  and , complete parts (a) through (f) below. .

  1. Calculate .

    Substitute for each in .

    Simplify.

  1. Solve .

    Substitute for .

    Subtract from both sides.

    Get the -term alone.

  1. Calculate .

    Substitute for each in .

    Simplify.

  1. Solve .

    Substitute for .

    Solve.

    No solution.

  1. Solve .

    Substitute for .

    Solve.

  1. Solve .

    Substitute x for .

    Solve.

    Remember, there should be 2 solutions.

Use the eTool below to solve for each part.
Click the link at right for the full version of the eTool: CCA2 1-21 HW eTool