Higher Plus
7th February 1957
- 1Vectors Proof Questions3 marks
In a vector proof you find that vector PQ = 2a + b and vector RS = 4a + 2b. What does this show about PQ and RS?
- 2Probability Equation Questions3 marks
The probability of winning a game is 1/2. A player expects 16 wins. How many games did they play?
- 3Histograms3 marks
A histogram has two bars: one 10 units wide with frequency density 2.5, one 20 units wide with density 0.6. How many values in total?
- 4Surds3 marks
Simplify sqrt(75) + sqrt(27), giving your answer in the form a sqrt(b).
- 5Transforming Graphs y=f(x)3 marks
The point (-2, 4) lies on y = f(x). Write down its image on y = -f(x).
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