Higher
22nd July 1979
- 1Parallel and Perpendicular Lines3 marks
A line has equation y = -2x + 1. Work out the gradient of any line perpendicular to it.
- 2Direct and Inverse Proportion3 marks
y is inversely proportional to x. When x = 2, y = 36. Work out y when x = 6.
- 3Enlarging with Negative Scale Factors3 marks
The point (6, 2) is enlarged by scale factor -1 about the centre (-3, 1). Write down the coordinates of the image.
- 4Venn Diagrams3 marks
In a Venn diagram, 16 are in A only, 3 in B only, 4 in both and 7 in neither. Work out the probability a random one is in both.
- 5Box Plots2 marks
A box plot has a minimum of 7 and a maximum of 62. Work out the range.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of July 1979, including the monthly compilation PDF.