Higher
3rd January 1982
- 1Enlarging with Negative Scale Factors3 marks
The point (-1, -3) is enlarged by scale factor -1 about the centre (0, -2). Write down the coordinates of the image.
- 2Venn Diagrams3 marks
In a Venn diagram, 7 are in A only, 4 in B only, 10 in both and 2 in neither. Work out the probability a random one is in both.
- 3Box Plots2 marks
A box plot has a minimum of 3 and a maximum of 53. Work out the range.
- 4Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.7575... as a fraction in its simplest form.
- 5Parallel and Perpendicular Lines3 marks
A line has equation y = -2x + 6. 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 January 1982, including the monthly compilation PDF.