Daily Practice

Higher

20th July 1990

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

1
Enlarging with Negative Scale Factors3 marks
The point (3, 2) is enlarged by scale factor -3 about the centre (-2, -2). Write down the coordinates of the image.
2
Venn Diagrams3 marks
In a Venn diagram, 7 are in A only, 10 in B only, 3 in both and 4 in neither. Work out the probability a random one is in both.
3
Capture Recapture2 marks
A capture-recapture estimate is made of the fish population of a pond. State one assumption the method relies on.
4
Standard Form3 marks
Work out (42 x 10^9) / (7 x 10^3). Give your answer in standard form.
5
Parallel and Perpendicular Lines3 marks
A line has equation y = -2x + 7. Work out the gradient of any line perpendicular to it.

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