Question

How do you convert `2=(-x-7y)^2-7x` into polar form?

Answer 1

`2=r^2(costheta+7sintheta)^2-7rcostheta`

Explanation:

We will use:
`x=rcostheta`
`y=rsintheta`

`2=(-rcostheta-7rsintheta)^2-7rcostheta`

`2=(-r)^2(costheta+7sintheta)^2-7rcostheta`

`2=r^2(costheta+7sintheta)^2-7rcostheta`

This cannot be simplified further and so has to be left as an implivit equation.