Foundation Plus
13th December 1971
- 1Expanding and Factorising Quadratics3 marks
Factorise x^2 + 7x + 12.
- 2Repeated Percentage Change3 marks
A town's population is 5500 and grows by 6% each year. Work out the population after 4 years, to the nearest whole number.
- 3Transformations2 marks
The point (-6, -7) is rotated 90° clockwise about the origin. Write down the coordinates of the image.
- 4Probability (Higher)3 marks
A biased coin lands on heads with probability 0.4. It is thrown 500 times. How many heads would you expect?
- 5Scatter Graphs2 marks
A scatter graph plots the length of a queue and the number of tills open. What type of correlation would you expect?
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Any date always gives the same five questions, so a sheet can be set again or shared. All of December 1971, including the monthly compilation PDF.