Daily Practice

Higher

8th October 1990

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

1
Cumulative Frequency2 marks
A cumulative frequency graph is drawn for 192 values. What cumulative frequency do you read across from to estimate the lower quartile?
2
Fractional and Negative Indices2 marks
Write 2^-3 as a fraction.
3
Parallel and Perpendicular Lines3 marks
A line has equation y = 3x + 8. Work out the gradient of any line perpendicular to it.
4
Repeated Percentage Change3 marks
A price rises by 15% and then falls by 20%. Work out the overall percentage change, to 2 decimal places.
5
Enlarging with Negative Scale Factors3 marks
The point (-2, 1) is enlarged by scale factor -1 about the centre (-2, -1). Write down the coordinates of the image.

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