Daily Practice · Higher

Daily Practice - Higher

Grades 6-7 - Higher-tier method and manipulation.

25th December 2001

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

1
Enlarging with Negative Scale Factors3 marks
The point (1, -4) is enlarged by scale factor -1 about the centre (-2, 1). Write down the coordinates of the image.
2
Venn Diagrams3 marks
In a Venn diagram, 11 are in A only, 14 in B only, 12 in both and 7 in neither. Work out the probability a random one is in both.
3
Capture Recapture3 marks
15 voles are marked and released. Later 81 are caught, of which 9 are marked. Estimate the population.
4
Surds2 marks
Write sqrt(72) in the form a sqrt(b), where b is as small as possible.
5
Parallel and Perpendicular Lines3 marks
A line has equation y = -4x + 7. Work out the gradient of any line perpendicular to it.

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