Foundation Plus
16th April 1978
- 1Inequalities on Graphs3 marks
Does the point (1, 5) satisfy y > -3x + 4?
- 2Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 7 : 9. Write y in terms of x.
- 3Angles in Parallel Lines2 marks
Two parallel lines are crossed by a straight line. One of a pair of alternate angles is 78°. Work out the other, and give a reason.
- 4Probability Trees3 marks
A bag holds 9 red and 2 blue counters. One is taken, replaced, then another is taken. Work out the probability both are red.
- 5Averages from Frequency Tables2 marks
Grouped data has five classes of width 5, the first being 10 < x <= 15. The frequencies in order are 16, 3, 21, 7, 11. Write down the modal class.
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