Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
8th March 2025
- 1Histograms2 marks
On a histogram, a 10-wide bar and a 30-wide bar have the same frequency density of 1.5. How many more values are in the wider class?
- 2Bounds3 marks
A car covers 880 m (to the nearest 10 m) in 2 s (to the nearest second). Work out the lower bound of its speed, to 2 decimal places.
- 3Inverse and Composite Functions3 marks
f(x) = 5x + 1 and g(x) = 5x + 8. Work out fg(1).
- 4Velocity Time Graphs3 marks
A cyclist speeds up steadily from 5 m/s to 18 m/s over 8 seconds. Use the area under the velocity-time graph to find the distance travelled.
- 53d Pythagoras and Trigonometry3 marks
A cuboid measures 8 cm by 15 cm by 13 cm. Work out the length of the longest diagonal inside it, to 1 decimal place.
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