Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
3rd October 2024
- 1Histograms2 marks
On a histogram, a 10-wide bar and a 40-wide bar have the same frequency density of 3. How many more values are in the wider class?
- 2Surds3 marks
Simplify sqrt(8) + sqrt(18), giving your answer in the form a sqrt(b).
- 3Rearranging Harder Formulae3 marks
Make x the subject of 7x + 4 = y(x + 4).
- 4Velocity Time Graphs3 marks
A tram runs at 7 m/s for 10 s, then slows steadily to rest over 4 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 = 5a - 4b and vector RS = 25a - 20b. What does this show about PQ and RS?
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