Higher
18th September 1977
- 1Parallel and Perpendicular Lines3 marks
A line has equation y = 5x + 8. Work out the gradient of any line perpendicular to it.
- 2Direct and Inverse Proportion3 marks
y is inversely proportional to x. When x = 5, y = 12. Work out y when x = 2.
- 3Enlarging with Negative Scale Factors3 marks
The point (-3, -5) is enlarged by scale factor -3 about the centre (-2, -1). Write down the coordinates of the image.
- 4Venn Diagrams3 marks
In a Venn diagram, 4 are in A only, 7 in B only, 3 in both and 8 in neither. Work out the probability a random one is in both.
- 5Box Plots2 marks
A box plot has a minimum of 8 and a maximum of 28. Work out the range.
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