Higher
3rd March 1986
- 1Cumulative Frequency2 marks
A cumulative frequency graph is drawn for 208 values. What cumulative frequency do you read across from to estimate the lower quartile?
- 2Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.888... as a fraction in its simplest form.
- 3Parallel and Perpendicular Lines3 marks
A line has equation y = 3x + 4. Work out the gradient of any line perpendicular to it.
- 4Repeated Percentage Change3 marks
A price rises by 25% and then falls by 25%. Work out the overall percentage change, to 2 decimal places.
- 5Enlarging with Negative Scale Factors3 marks
The point (0, -3) is enlarged by scale factor -2 about the centre (-3, -2). 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 March 1986, including the monthly compilation PDF.