H = - 16 t² + 36 t + 10 The maximum height of the ball is at the vertex of the parabola. t = - b / 2 a t = -36/-32 t = 1.12 s The maximum height of the ball: h max = - 16 * 1.12² + 32* 1.12 + 10 = - 16 * 1.2544 + 35.84 + 10 = = - 20.0704 + 45.84 = 25.7696 = 25.77 m