### Home > PC > Chapter 10 > Lesson 10.2.3 > Problem 10-98

10-98.

We can use parametric equations in three dimensions as well.

We begin in two dimensions. Sketch the figure produced by

and. Describe the figure sketched on the interval. Now suppose we have

,, and. Make a table with four columns:,,, and. Put in several values ofto answer the question: what happens to the point asincreases fromto ? Imagine the

-axis as coming out of the paper on your desk vertically.What would it look like if you plotted the points of a circle on a graph, but moved vertically out of your paper while doing so?How would the figure be different if the equations were

,, and?