Higher
17th March 1991
- 1Enlarging with Negative Scale Factors3 marks
The point (-6, 5) is enlarged by scale factor -1 about the centre (3, -2). Write down the coordinates of the image.
- 2Venn Diagrams3 marks
In a Venn diagram, 11 are in A only, 8 in B only, 2 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 9 and a maximum of 57. Work out the range.
- 4Standard Form2 marks
Work out (7 x 10^5) x (7 x 10^-3). Give your answer in standard form.
- 5Parallel and Perpendicular Lines3 marks
A line has equation y = 4x + 9. 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 March 1991, including the monthly compilation PDF.