Daily Practice · Higher

Daily Practice - Higher

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

30th October 1998

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

1
Enlarging with Negative Scale Factors3 marks
The point (2, 6) is enlarged by scale factor -2 about the centre (2, -2). Write down the coordinates of the image.
2
Venn Diagrams3 marks
In a Venn diagram, 12 are in A only, 13 in B only, 2 in both and 3 in neither. Work out the probability a random one is in both.
3
Capture Recapture2 marks
A capture-recapture estimate is made of the snail population of a hedgerow. State one assumption the method relies on.
4
Reverse Percentages3 marks
A bill is £840 including VAT at 20%. Work out the amount before VAT.
5
Parallel and Perpendicular Lines3 marks
A line has equation y = -5x + 5. Work out the gradient of any line perpendicular to it.

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