Daily Practice · Higher

Daily Practice - Higher

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

17th July 2018

5 questions · 15 marks · Grades 6-7 · 61 question types in this band

1
Enlarging with Negative Scale Factors3 marks
The point (-6, -4) is enlarged by scale factor -1 about the centre (-4, 0). Write down the coordinates of the image.
2
Venn Diagrams3 marks
In a Venn diagram, 17 are in A only, 3 in B only, 10 in both and 7 in neither. Work out the probability a random one is in both.
3
Capture Recapture3 marks
45 fish are marked and released. Later 21 are caught, of which 3 are marked. Estimate the population.
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 + 3. Work out the gradient of any line perpendicular to it.

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