Higher
5th October 1989
- 1Enlarging with Negative Scale Factors3 marks
The point (-5, 5) is enlarged by scale factor -2 about the centre (-1, 2). Write down the coordinates of the image.
- 2Venn Diagrams3 marks
In a Venn diagram, 16 are in A only, 7 in B only, 2 in both and 10 in neither. Work out the probability a random one is in both.
- 3Histograms2 marks
A histogram class is 4 units wide and contains 10 values. Work out the frequency density.
- 4Standard Form2 marks
Work out (9 x 10^5) x (3 x 10^3). Give your answer in standard form.
- 5Parallel and Perpendicular Lines3 marks
A line has equation y = -3x + 8. 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 October 1989, including the monthly compilation PDF.