Foundation Plus
3rd January 1977
- 1Expanding and Factorising Quadratics3 marks
Factorise x^2 + 10x + 24.
- 2Repeated Percentage Change3 marks
A town's population is 37000 and grows by 5% each year. Work out the population after 6 years, to the nearest whole number.
- 3Angles in Parallel Lines2 marks
Two parallel lines are crossed by a straight line. One of a pair of alternate angles is 97°. Work out the other, and give a reason.
- 4Probability Trees3 marks
A bag holds 3 red and 8 blue counters. One is taken, replaced, then another is taken. Work out the probability both are red.
- 5Scatter Graphs2 marks
A scatter graph plots the height of a tree and its age. What type of correlation would you expect?
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