Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
29th November 1998
- 1Vectors Proof Questions3 marks
In a vector proof you find that vector PQ = a - 6b and vector RS = 5a - 30b. 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?
- 3Histograms2 marks
On a histogram, a 10-wide bar and a 30-wide bar have the same frequency density of 2.5. How many more values are in the wider class?
- 4Bounds3 marks
x = 183 and y = 40, each correct to the nearest whole number. Work out the upper bound of x - y.
- 5Factorising Harder Quadratics3 marks
Solve 6x^2 + 11x + 4 = 0.
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