A projectile is thrown with a velocity of 40 m/s, 45 degrees above the +x-axis. Determine its initial x-velocity and its initial y-velocity. Which answer choice is the answer? initial vx= +28.28 m/s and initial vy = +28.28 m/s

initial vx= -28.28 m/s and initial vy = +28.28 m/s

initial vx= -28.28 m/s and initial vy = -28.28 m/s

initial vx= +28.28 m/s and initial vy = -28.28 m/s