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Home > A2C > Chapter 7 > Lesson 7.1.2 > Problem 7-21


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 (x, y, z) form. .

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. .


See part (a):

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

See part (a):

Use the eTool below to test your solutions to parts (a), (b) and (c) above.
Click the link at right for the full version of the eTool: 7-21 HW eTool