Find a polar equation for the curve represented by the given Cartesian equation.

Question

Find a polar equation for the curve represented by the given Cartesian equation.

y=4

Please show detailed solution. Thank you.

Answer 1

y = r sin θ

4 = r sin θ

Answer 2

Diego,

There aren't that many details to show. You just use the standard relation between polar and Cartesian coordinates ( x = rcosθ , y = rsinθ ) and then solve the resulting equation for r.