need help solving this polynomial question

7. The path of a baseball after it is hit is modelled by the equation h = -4.98* +10.75/ +1.4, where " is the height, in metres, of the ball and / is the time, in seconds, after the ball is hit. Find the maximum height that the ball reaches, to the nearest hundredth of a metre. (1 mark) b. Determine the height of the ball, to the nearest hundredth of a metre, at 2 seconds, (1 mark) C. Determine when the ball is at a height of 6.5m, to the nearest hundredth of a second. (2 marks) d. State the y-intercept of the graph to the nearest hundredth. Describe what the y-intercept represents in the context of this question. (2 marks) e. i. Find the coordinates of both x-intercepts of the graph to the nearest hundredth. (2 marks) if. State what the positive x-intercept represents in the context of this problem. (1 mark) ini. Explain why the negative x-intercept is not valid in the context of this problem. (1 mark)