Higher Plus
2nd April 1982
- 1Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^3. When x = 2, y = 48. Work out y when x = 3.
- 2Vectors Proof Questions3 marks
OACB is a parallelogram with vector OA = p and vector OB = a. M is the midpoint. Write vector OM in terms of p and a.
- 3Probability Equation Questions3 marks
The probability of winning a game is 1/2. A player expects 26 wins. How many games did they play?
- 4Histograms3 marks
On a histogram the bar for 30 < x <= 40 has a frequency density of 2.4. How many values are in that class?
- 5Surds3 marks
Rationalise the denominator of 20/sqrt(2), giving your answer in its simplest form.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of April 1982, including the monthly compilation PDF.