Daily Practice

Higher

25th July 1986

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 moth population of a meadow. State one assumption the method relies on.
2
Surds2 marks
Write sqrt(12) in the form a sqrt(b), where b is as small as possible.
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 = 7, y = 77. Work out y when x = 5.
5
Enlarging with Negative Scale Factors3 marks
The point (0, 2) is enlarged by scale factor -2 about the centre (1, -3). Write down the coordinates of the image.

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Any date always gives the same five questions, so a sheet can be set again or shared. All of July 1986, including the monthly compilation PDF.