Daily Practice

Higher

22nd November 1983

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 + 5. Work out the gradient of any line perpendicular to it.
2
Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 4 : 9. Write y in terms of x.
3
Enlarging with Negative Scale Factors3 marks
The point (-5, -6) is enlarged by scale factor -3 about the centre (-2, 2). Write down the coordinates of the image.
4
Venn Diagrams3 marks
In a Venn diagram, 11 are in A only, 5 in B only, 3 in both and 9 in neither. Work out the probability a random one is in both.
5
Capture Recapture3 marks
15 fish are marked and released. Later 30 are caught, of which 5 are marked. Estimate the population.

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