Representing Vectors in Polar Coordinates

Q. In polar coordinate system each point on a plane is determined by a distance from a reference point and an angle from a reference direction.

1. True
2. False

Q. Change the Cartesian coordinate ($-1,1$) to polar coordinate system.

1. $(\sqrt{2},\frac{3\pi }{4})$
2. $(1,\frac{3\pi }{4})$
3. $(\sqrt{2},\frac{7\pi }{4})$
4. $(1,\frac{\pi }{4})$