and L Determine the angle that the line with equation = (4, -5), te R, makes with the x-axis and y-axis.

The point that is 2 units to the left of the y-axis and 4 units above the x-axis has coordinates (______ , ________ ).

From the time a small airplane is 100 feet high and 1600 ground feet from its landing runway, the plane descends in a straight line to the runway. Determine the angle of descent (in degrees) of the plane.