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2 marksInterpreting Function Graphs

CSEC Mathematics · May/June 2016 · Paper 2 · Question 9(b)(ii)

A distance-time graph shows a three-stage journey of a car travelling from Town A to Town C and back to Town A. The graph shows distance (km) on the y-axis and time of day on the x-axis, from 06:00 to 10:00.

Calculate the TOTAL time, in minutes, for which the car stopped during the journey.

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Other parts of this question

  1. 9(a)(i)Write an expression, in terms of x, for EACH of the following: f^-1(x), g^-1(x), fg(x).[4 marks]
  2. 9(a)(ii)Show that (fg)^-1(5) = g^-1 f^-1(5).[3 marks]
  3. 9(b)(i)State the time of day at which the car arrived at Town C.[1 mark]
  4. 9(b)(iii)Determine the constant speed of the car during Stage 2 of the journey.[2 marks]
  5. 9(b)(iv)Calculate the average speed of the car for the time during which it was moving.[3 marks]

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