How do you convert $x = -3$ into polar form?

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Answer 1 · 2016-04-15T08:50:56

In polar form equation is $r=-3/costheta$

If a point $(x,y)$ is written as $(r,theta)$ in polar coordinates, then $x=rostheta$ and $y=rsintheta$ .

As such in polar form equation $x=-3$ can be written as

$rcostheta=-3$

or $r=-3/costheta$

How do you convert x = -3x = -3 into polar form?