Question

Rewrite r = 3.5 sin (theta) in rectangular form.

Answer 1

x^2+y^2-3.5y=0.

Explanation:

Answer 2

We multiply this equation by r to give:


`r^2 = 3.5r \sin \theta`

Note that we know that
`r^2 = x^2 + y^2` and
`y = r \sin \theta`, so
`x^2+y^2 = 3.5 y`, so
`x^2+y^2-3.5y=0`.