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6-21.

For each of the following equations, find every point where its three-dimensional graph intersects one of the coordinate axes. That is, find the x-, y- and z-intercepts. Express your answer in form. 6-21 HW eTool (CPM). Homework Help ✎

  1. To find the intercept of a given axis, set all other variables to zero.
    For example, the y-intercept will be .
    To find the y-intercept, let and .

    Repeat the process to find the z-intercept. .

    and

  2. See part (a).

  3. See part (a).
    Note: You will have two x-intercepts and two z-intercepts. Why?

  4. See part (a).

    Use the eTool below to test your solutions to parts (a), (b), and (c) above.
    Click on the link at right for the full eTool version: CCA2 6-21 HW eTool