Foundation Plus
7th November 1987
- 1Expanding and Factorising Quadratics3 marks
Factorise x^2 - 7x + 6.
- 2Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 7, y = 35. Work out y when x = 9.
- 3Angles in Parallel Lines2 marks
Two parallel lines are crossed by a straight line. One of a pair of corresponding angles is 139°. Work out the other, and give a reason.
- 4Probability Trees3 marks
A bag holds 8 red and 4 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 number of pages in a book and its price. What type of correlation would you expect?
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