Daily Practice · Higher

Daily Practice - Higher

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

5th May 2009

5 questions · 15 marks · Grades 6-7 · 61 question types in this band

1
Enlarging with Negative Scale Factors3 marks
The point (-1, 3) is enlarged by scale factor -2 about the centre (-3, 4). Write down the coordinates of the image.
2
Venn Diagrams3 marks
In a Venn diagram, 15 are in A only, 3 in B only, 3 in both and 6 in neither. Work out the probability a random one is in both.
3
Capture Recapture3 marks
15 beetles are marked and released. Later 72 are caught, of which 6 are marked. Estimate the population.
4
Standard Form3 marks
Work out (72 x 10^6) / (8 x 10^2). Give your answer in standard form.
5
Parallel and Perpendicular Lines3 marks
A line has equation y = 2x + 3. Work out the gradient of any line perpendicular to it.

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