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Kaleigh's question at Yahoo! Answers involving eliminating a parameter

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MarkFL

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Feb 24, 2012
13,775
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MarkFL

Administrator
Staff member
Feb 24, 2012
13,775
Hello Kaleigh,

We are given the parametric equations:

\(\displaystyle x=\cos(t)\)

\(\displaystyle y=\sec(t)\)

One way we may eliminate the parameter $t$ is to multiply the two equations together, giving:

\(\displaystyle xy=1\)

We may choose to write this as:

\(\displaystyle y=\frac{1}{x}\)

To Kaleigh and any other guests viewing this topic, I invite and encourage you to post other parametric equations questions in our Pre-Calculus forum.

Best Regards,

Mark.