Daily Practice

Higher

31st December 1974

5 questions · 13 marks · Grades 6-7 · 61 question types in this band

1
Capture Recapture3 marks
15 voles are marked and released. Later 22 are caught, of which 2 are marked. Estimate the population.
2
Surds2 marks
Write sqrt(32) in the form a sqrt(b), where b is as small as possible.
3
Parallel and Perpendicular Lines3 marks
A line has equation y = -4x + 7. Work out the gradient of any line perpendicular to it.
4
Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 4 : 5. Write y in terms of x.
5
Enlarging with Negative Scale Factors3 marks
The point (2, 4) is enlarged by scale factor -2 about the centre (4, 4). Write down the coordinates of the image.

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