Daily Practice

Higher

11th December 1990

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

1
Enlarging with Negative Scale Factors3 marks
The point (3, -6) is enlarged by scale factor -2 about the centre (-1, -1). Write down the coordinates of the image.
2
Venn Diagrams3 marks
In a Venn diagram, 10 are in A only, 3 in B only, 12 in both and 10 in neither. Work out the probability a random one is in both.
3
Capture Recapture3 marks
30 fish are marked and released. Later 33 are caught, of which 3 are marked. Estimate the population.
4
Fractional and Negative Indices3 marks
Work out 81^(3/2).
5
Parallel and Perpendicular Lines3 marks
A line has equation y = -5x + 2. Work out the gradient of any line perpendicular to it.

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