Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
5th February 2015
- 1Histograms2 marks
On a histogram, a 4-wide bar and a 16-wide bar have the same frequency density of 1.5. How many more values are in the wider class?
- 2Surds3 marks
Simplify sqrt(72) + sqrt(98), giving your answer in the form a sqrt(b).
- 3Transforming Graphs y=f(x)3 marks
The point (3, -3) lies on y = f(x). Write down its image on y = f(-x).
- 4Velocity Time Graphs3 marks
A tram runs at 11 m/s for 30 s, then slows steadily to rest over 4 s. Work out its average speed for the whole journey, to 2 decimal places.
- 53d Pythagoras and Trigonometry3 marks
A cuboid measures 5 cm by 4 cm by 11 cm tall. Work out the angle between its longest internal diagonal and the base, to 1 decimal place.
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