Higher
14th July 1982
- 1Enlarging with Negative Scale Factors3 marks
The point (-1, 1) is enlarged by scale factor -2 about the centre (-4, -3). Write down the coordinates of the image.
- 2Venn Diagrams3 marks
In a Venn diagram, 14 are in A only, 14 in B only, 12 in both and 1 in neither. Work out the probability a random one is in both.
- 3Cumulative Frequency2 marks
Four classes in order have frequencies 5, 9, 11, 8. Write down the cumulative frequency at the end of the third class.
- 4Standard Form2 marks
Work out (6 x 10^3) x (4 x 10^-4). Give your answer in standard form.
- 5Parallel and Perpendicular Lines3 marks
A line has equation y = 5x + 7. Work out the gradient of any line perpendicular to it.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of July 1982, including the monthly compilation PDF.