Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
1st September 2023
- 1Enlarging with Negative Scale Factors3 marks
The point (6, 4) is enlarged by scale factor -1 about the centre (1, 0). Write down the coordinates of the image.
- 2Venn Diagrams3 marks
In a Venn diagram, 5 are in A only, 17 in B only, 6 in both and 2 in neither. Work out the probability a random one is in both.
- 3Capture Recapture2 marks
A capture-recapture estimate is made of the moth population of a meadow. State one assumption the method relies on.
- 4Surds2 marks
Write sqrt(72) in the form a sqrt(b), where b is as small as possible.
- 5Parallel and Perpendicular Lines3 marks
A line has equation y = -2x + 2. Work out the gradient of any line perpendicular to it.
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