Foundation Plus
6th August 1967
- 1Drawing Other Graphs: Cubic/Reciprocal2 marks
For the curve y = -25/x, work out y when x = -5, and write down the equation of its vertical asymptote.
- 2Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 4 : 7. Write y in terms of x.
- 3Pythagoras2 marks
A right-angled triangle has a hypotenuse of 41 cm and one shorter side of 40 cm. Work out the other shorter side.
- 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.
- 5Box Plots2 marks
A box plot has minimum 7, lower quartile 13, median 18, upper quartile 24 and maximum 31. 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 August 1967, including the monthly compilation PDF.