Daily Practice · Higher

Daily Practice - Higher

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

24th July 2009

5 questions · 13 marks · Grades 6-7 · 61 question types in this band

1
Capture Recapture2 marks
A capture-recapture estimate is made of the beetle population of a woodland. State one assumption the method relies on.
2
Fractional and Negative Indices2 marks
Write 9^-3 as a fraction.
3
Parallel and Perpendicular Lines3 marks
A line has equation y = 4x + 1. Work out the gradient of any line perpendicular to it.
4
Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 3, y = 27. Work out y when x = 6.
5
Enlarging with Negative Scale Factors3 marks
The point (4, -4) is enlarged by scale factor -3 about the centre (1, -4). Write down the coordinates of the image.

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