Question

Which of the following graphs represents the polar coordinates (-3, 45˚)

Answer 1

Draw a circle of radius 3 centered at the origin and mark the point where the 45o angle intersects the circle.

Answer 2

and you have (-2, -30o)

Answer 3

Draw a circle of radius 2 centered at the origin. The negative sign indicates direction along the radius and simply means move along the radius opposite the positive direction. Positive r's mean move toward the angle named. Negative r's mean move away from the angle named. Find the -30o position along this circle and, from the origin, move 2 units away from the -30o angle. Mark that point.
Another way to name this point is (2, 150o).

Answer 4

So, C would be correct?