Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
8th August 2008
- 1Vectors Proof Questions3 marks
In a vector proof you find that vector PQ = 6a + 2b and vector RS = 30a + 10b. What does this show about PQ and RS?
- 2Probability Equation Questions3 marks
The probability of winning a game is 1/5. A player expects 2 wins. How many games did they play?
- 3Histograms2 marks
On a histogram, a 5-wide bar and a 10-wide bar have the same frequency density of 2. How many more values are in the wider class?
- 4Surds3 marks
Rationalise the denominator of 18/sqrt(2), giving your answer in its simplest form.
- 5Completing the Square3 marks
Work out the coordinates of the turning point of y = x^2 + 12x - 14.
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