Foundation Plus
25th September 1962
- 1Expanding and Factorising Quadratics3 marks
Factorise x^2 + 16x + 63.
- 2Compound Interest and Depreciation3 marks
£4000 is invested at 2% compound interest per year. Work out the value after 4 years, to the nearest penny.
- 3Similar Shapes (Area and Volume)3 marks
Two similar shapes have lengths in the ratio 1 : 5. The smaller has an area of 23 cm^2. Work out the area of the larger.
- 4Probability (Higher)3 marks
A biased coin lands on heads with probability 0.2. It is thrown 100 times. How many heads would you expect?
- 5Scatter Graphs2 marks
A scatter graph plots a runner's time for 100 m and the distance they can throw a ball. What type of correlation would you expect?
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