Higher
21st January 1971
- 1Histograms2 marks
A histogram class is 5 units wide and contains 10 values. Work out the frequency density.
- 2Bounds2 marks
A mass is 590 kg, correct to the nearest 10. Write down the lower bound.
- 3Parallel and Perpendicular Lines3 marks
A line has equation y = 5x + 7. Work out the gradient of any line perpendicular to it.
- 4Repeated Percentage Change3 marks
A town's population is 35500 and grows by 4% each year. Work out the population after 5 years, to the nearest whole number.
- 5Enlarging with Negative Scale Factors3 marks
The point (-4, 4) is enlarged by scale factor -2 about the centre (-3, 2). Write down the coordinates of the image.
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