Higher
7th December 1977
- 1Enlarging with Negative Scale Factors3 marks
The point (-6, 6) is enlarged by scale factor -3 about the centre (1, -3). Write down the coordinates of the image.
- 2Venn Diagrams3 marks
In a Venn diagram, 17 are in A only, 18 in B only, 6 in both and 9 in neither. Work out the probability a random one is in both.
- 3Cumulative Frequency2 marks
Four classes in order have frequencies 6, 8, 9, 3. Write down the cumulative frequency at the end of the third class.
- 4Fractional and Negative Indices3 marks
Work out 125^(2/3).
- 5Parallel and Perpendicular Lines3 marks
A line has equation y = -4x + 2. 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 December 1977, including the monthly compilation PDF.