Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
16th September 2018
- 1Probability Equation Questions3 marks
A bag holds 6 red and n blue counters. The probability of taking a red is 6/13. Work out n.
- 2Histograms3 marks
On a histogram the bar for 10 < x <= 15 has a frequency density of 1.5. How many values are in that class?
- 3Bounds3 marks
x = 137 and y = 59, each correct to the nearest whole number. Work out the upper bound of x - y.
- 4Inverse and Composite Functions3 marks
f(x) = 4x + 11. Work out the inverse function f^-1(x).
- 5Velocity Time Graphs2 marks
A train slows steadily from 37 m/s to rest in 10 seconds. Work out its deceleration.
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