Higher Plus
25th September 1959
- 1Vectors Proof Questions3 marks
In a vector proof you find that vector PQ = 3a + 5b and vector RS = 12a + 20b. What does this show about PQ and RS?
- 2Probability Equation Questions3 marks
The probability of winning a game is 3/10. A player expects 24 wins. How many games did they play?
- 3Histograms3 marks
A histogram has two bars: one 20 units wide with frequency density 0.4, one 10 units wide with density 1.4. How many values in total?
- 4Surds3 marks
Rationalise the denominator of 14/sqrt(7), giving your answer in its simplest form.
- 5Completing the Square3 marks
Work out the coordinates of the turning point of y = x^2 + 4x + 7.
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