Daily Practice · Higher

Daily Practice - Higher

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

13th November 2009

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

1
Enlarging with Negative Scale Factors3 marks
The point (-1, 2) is enlarged by scale factor -1 about the centre (4, 4). Write down the coordinates of the image.
2
Venn Diagrams3 marks
In a Venn diagram, 6 are in A only, 16 in B only, 7 in both and 6 in neither. Work out the probability a random one is in both.
3
Capture Recapture2 marks
A capture-recapture estimate is made of the newt population of a stream. State one assumption the method relies on.
4
The Product Rule for Counting3 marks
A code is 2 letters (A to Z) followed by 3 digits (0 to 9), and repeats are allowed. How many codes are possible?
5
Parallel and Perpendicular Lines3 marks
A line has equation y = 4x + 8. Work out the gradient of any line perpendicular to it.

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