how would i answer c?

signment Booklet 5 Unit 5: Polynomial Functions 7. The path of a baseball after it is hit is modelled by the equation h = -4.981- +12.51 +1.36, where h is the height, in metres, of the ball and / is the time, in seconds, after the ball is hit. a. Find the maximum height that the ball reaches, to the nearest hundredth of a metre. (1 mark) ( 1:91 , 7. 05 ) 1 7.05 m b. Determine the height of the ball, to the nearest hundredth of a metre, at 2.5 seconds. (1 mark) let 1 = 2.5 1 1. 51 m/ c. Determine when the ball is at a height of 8m, to the nearest hundredth of a second. (2 marks) let h = 8 C = - 6:64 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)