9. Polar Equations

Convert each equation to its polar form.

$y-x=6$

Convert each equation to its polar form.

$3y-5x=2$

Convert each equation to its polar form.

$x^2+y^2=2y$

Convert each equation to its polar form.

$x^2+(y-2)^2=4$

Convert each equation to its rectangular form.

$r=-4\cos\theta$

Convert each equation to its rectangular form.

$r=\frac{2}{1-\sin\theta}$

In Exercises 49–58, convert each rectangular equation to a polar equation that expresses r in terms of θ.

x² + y² = 16