Question

How do you convert the polar equation to rectangular form?

`θ=(7π)/4`

Answer 1

`x+y=0`

Explanation:

Rectangular and polar conversion equations are:
x = r cos θ, y = r sin θ
r = √(x² + y² )
tan θ = y/x => θ = arctan( y/x )
So in this case:
`theta = (7pi)/4`
`tan((7pi)/4)= -1`
`y/x=-1`
`y=-x`
`x+y=0`