Triangle PQR is a 45 degree-45 degree-90 degree triangle with vertices Q(4,6), and R(-6,-4), and the measure of angle P…

Triangle PQR is a 45 degree-45 degree-90 degree triangle with vertices Q(4,6), and R(-6,-4), and the measure of angle P equals 90 degrees. P is in quadrant 2. Find the coordinates of P.