Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
9th December 2019
- 1Vectors Proof Questions3 marks
In a vector proof you find that vector PQ = 3a - 4b and vector RS = 9a - 12b. What does this show about PQ and RS?
- 2Probability Equation Questions3 marks
The probability of winning a game is 1/4. A player expects 24 wins. How many games did they play?
- 3Histograms2 marks
On a histogram, a 4-wide bar and a 16-wide bar have the same frequency density of 3. How many more values are in the wider class?
- 4Bounds3 marks
A block has mass 620 g (to the nearest 10 g) and volume 12 cm^3 (to the nearest cm^3). Work out the upper bound of its density, to 2 decimal places.
- 5Transforming Graphs y=f(x)3 marks
The point (3, -4) lies on y = f(x). Write down its image on y = f(x - 2).
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