Please help.
Please help.
Question 7: Given , determine the value(s) of for which: 7.1 (1) 7.2 is undefined. (2) 7.3 and real. (6) [9] Question 8: A tennis player hits a ball against a practice wall away and it rebounds as shown in the diagram below. The initial path of the ball as it is struck by the player is given by the equation , where is the height, in metres, that the ball is above the ground and is the distance, in metres, that the ball is away from the player. 8.1 From what height is the tennis ball struck? (1) 8.2 Given that the ball strikes the wall at metres, determine the height it strikes the wall in terms of . (4) Show, that the turning point of the initial path of the ball as it is struck by the player, is given by (5) The ball rebounds off the wall along the curve defined by . Determine the values of at which the ball hits the ground. (3) [13]
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