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Question #1: A ball is thrown off a roof and its height in metres relative to time (seconds) is modelled by h=-0.8(t - 4)2 +

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Question #1: A ball is thrown off a roof and its height in metres relative to time (seconds) is modelled by h=-0.8(t - 4)2 + 26 a) How high is the roof? Explain how you know. (K/U- 2 marks) b) How long is the ball in the air? (K/U-4 marks) apgrem in your c) What was the height of the ball after 8 seconds? Show your work and /or reasoning. (A - 2 marks) 1

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