Convert to Rectangular Form...3

Question 8.

2 sin θ - 3 cos θ = r

Multiply both sides by r.

2 r sinθ - 3 r cosθ = r•r

2y - 3x = r^2

2y - 3x = x^2 + y^2

2y - 3x - x^2 - y^2 = 0

You say?

 

correct

 

I thought you said we need to solve for y, which means to isolate y. Yes or no?

 

you can leave it like that, but I prefer solving for y which means to isolate y

 

I will not solve any of these questions for y, if it is not required.