Daily Practice

Higher

18th August 1989

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

1
Enlarging with Negative Scale Factors3 marks
The point (0, 4) is enlarged by scale factor -2 about the centre (1, -2). Write down the coordinates of the image.
2
Venn Diagrams3 marks
In a Venn diagram, 17 are in A only, 3 in B only, 6 in both and 9 in neither. Work out the probability a random one is in both.
3
Capture Recapture2 marks
A capture-recapture estimate is made of the moth population of a meadow. State one assumption the method relies on.
4
The Product Rule for Counting3 marks
A code is 3 letters (A to Z) followed by 4 digits (0 to 9), and repeats are allowed. How many codes are possible?
5
Parallel and Perpendicular Lines3 marks
A line has equation y = -3x + 7. Work out the gradient of any line perpendicular to it.

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