How do I convert the rectangular equation 3x-y+2=0 to polar form?

Question

I don't understand the steps to get it into polar form.

Answer 1

Hi Danielle,

 

To convert an equation from rectangular form to polar form simply replace x with r cos θ and y with r sin θ. 

 

       3x - y + 2 = 0 becomes  3(r cos θ) - (r sin θ) + 2 = 0 or  3r cos θ - r sin θ + 2 = 0