Higher
24th March 1988
- 1Parallel and Perpendicular Lines3 marks
A line has equation y = -4x + 5. Work out the gradient of any line perpendicular to it.
- 2Repeated Percentage Change3 marks
A town's population is 39000 and grows by 5% each year. Work out the population after 2 years, to the nearest whole number.
- 3Enlarging with Negative Scale Factors3 marks
The point (3, 2) is enlarged by scale factor -3 about the centre (4, 4). Write down the coordinates of the image.
- 4Venn Diagrams3 marks
In a Venn diagram, 16 are in A only, 17 in B only, 11 in both and 10 in neither. Work out the probability a random one is in both.
- 5Histograms2 marks
A histogram class is 2 units wide and contains 5 values. Work out the frequency density.
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