a. Given the point ( r , ) = ( 6 , 4 ) in polar coordinates, convert its location to Cartesian coordinates. image ( x , y ) = (-3.91,-4.5488) Correct b. Given the point ( r , ) = ( 1.6 , 5 ) in polar coordinates, convert its location to Cartesian coordinates. We strongly encourage you to sketch a diagram of the given information and your solution to make sure you see how the two different pairs of coordinates can describe the same point. ( x , y ) = Incorrect . Invalid notation