Question

What is the equation -2x + 6y = 9 in polar form?

Answer 1

−3sinθ±3
cos2θ is that one of your answers?

Answer 2

Not quite... I can tell you all the answers right now:

7√(10)/20 = r cos(Ө – 72°)

7√(10)/20 = r cos(Ө – 108°)

9√(10)/20 = r cos(Ө – 108°)

9√(10)/20 = r cos(Ө – 72°)

@aarontookold

Answer 3

Hey, do you know how to represent x and y using polar coordinates? \[x = r \cos \theta\]\[y = rsin \theta \]
\[r^2=x^2+y^2\]