Daily Practice

Higher

30th May 1989

5 questions · 14 marks · Grades 6-7 · 61 question types in this band

1
Parallel and Perpendicular Lines3 marks
A line has equation y = 2x + 4. Work out the gradient of any line perpendicular to it.
2
Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 2 : 5. Write y in terms of x.
3
Enlarging with Negative Scale Factors3 marks
The point (-5, 0) is enlarged by scale factor -2 about the centre (1, 0). Write down the coordinates of the image.
4
Venn Diagrams3 marks
In a Venn diagram, 14 are in A only, 4 in B only, 12 in both and 9 in neither. Work out the probability a random one is in both.
5
Capture Recapture3 marks
45 beetles are marked and released. Later 20 are caught, of which 2 are marked. Estimate the population.

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