Daily Practice · Higher

Daily Practice - Higher

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

11th June 1999

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 snail population of a hedgerow. State one assumption the method relies on.
2
Fractional and Negative Indices2 marks
Write 4^-2 as a fraction.
3
Parallel and Perpendicular Lines3 marks
A line has equation y = -2x + 7. Work out the gradient of any line perpendicular to it.
4
Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 5, y = 45. Work out y when x = 6.
5
Enlarging with Negative Scale Factors3 marks
The point (-6, 4) is enlarged by scale factor -1 about the centre (-2, -4). Write down the coordinates of the image.

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