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11-68.

For each of the following equations, list every point where its three-dimensional graph intersects one of the coordinate axes. That is, what are the , , and ‑intercepts? Express your answers in  form.  

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

    Repeat the process to find the -intercept. .

    and

  1. See part (a):

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

  1. 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: INT3 11-68 HW eTool