Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
9th October 2002
- 1Vectors Proof Questions3 marks
In a vector proof you find that vector PQ = 2a - 4b and vector RS = 6a - 12b. What does this show about PQ and RS?
- 2Probability Equation Questions3 marks
The probability of winning a game is 3/5. A player expects 78 wins. How many games did they play?
- 3Histograms3 marks
A histogram has two bars: one 5 units wide with frequency density 2, one 10 units wide with density 3.5. How many values in total?
- 4Bounds3 marks
A rectangle is 12 cm by 8 cm, each correct to the nearest cm. Work out the upper bound of its area.
- 5Proof2 marks
In an algebraic proof, how would you write two consecutive odd numbers in terms of an integer n?
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