Foundation Plus
23rd July 1973
- 1Drawing Other Graphs: Cubic/Reciprocal2 marks
For the curve y = 4/x, work out y when x = 2, and write down the equation of its vertical asymptote.
- 2Repeated Percentage Change3 marks
A town's population is 6000 and grows by 3% each year. Work out the population after 2 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 138°. Work out the other, and give a reason.
- 4Probability Trees3 marks
A bag holds 3 red and 6 blue counters. One is taken, replaced, then another is taken. Work out the probability both are red.
- 5Box Plots2 marks
A box plot has minimum 7, lower quartile 14, median 19, upper quartile 22 and maximum 28. Work out the interquartile range.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of July 1973, including the monthly compilation PDF.