Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
5th September 1997
- 1Vectors Proof Questions3 marks
In a vector proof you find that vector PQ = a - 2b and vector RS = 4a - 8b. What does this show about PQ and RS?
- 2Probability Equation Questions3 marks
The probability of winning a game is 3/8. A player expects 6 wins. How many games did they play?
- 3Histograms3 marks
A histogram has two bars: one 20 units wide with frequency density 1.2, one 10 units wide with density 3.5. How many values in total?
- 4Surds3 marks
Rationalise the denominator of 14/sqrt(7), giving your answer in its simplest form.
- 5Quadratic Inequalities3 marks
Solve x^2 + 4x - 12 < 0.
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