Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
26th June 2020
- 1Histograms2 marks
On a histogram, a 4-wide bar and a 8-wide bar have the same frequency density of 2.5. How many more values are in the wider class?
- 2Surds3 marks
Rationalise the denominator of 132/sqrt(11), giving your answer in its simplest form.
- 3Quadratic Inequalities3 marks
Solve x^2 - 6x - 7 < 0.
- 4Velocity Time Graphs3 marks
A tram runs at 15 m/s for 20 s, then slows steadily to rest over 10 s. Work out its average speed for the whole journey, to 2 decimal places.
- 5Vectors Proof Questions3 marks
In a vector proof you find that vector PQ = a + 2b and vector RS = 3a + 6b. What does this show about PQ and RS?
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