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3 marksInterpreting Function Graphs

CSEC Mathematics · May/June 2018 · Paper 2 · Question 8(b)(ii)

The speed-time graph below shows information on the first 60 seconds of a car's journey.

Calculate the average speed of the car during Stage B.

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Other parts of this question

  1. 8(a)(i)Complete the table above by calculating and inserting the missing values of y.[2 marks]
  2. 8(a)(ii)On the diagram on page 25, the ordered pairs shown in the table have been plotted except for the missing ones. Using your answers in (a) (i), plot the missing…[2 marks]
  3. 8(a)(iii)By drawing an appropriate straight line on the diagram on page 25, find approximate solutions to the equation 3x + 1/x = 6.[3 marks]
  4. 8(b)(i)Calculate the acceleration, in ms⁻², of the car during Stage B.[1 mark]
  5. 8(b)(iii)At time t = 60 seconds, the car starts to slow down with a uniform deceleration of 2.5 ms⁻². Determine how long it will take the car to come to rest.[1 mark]

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