Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
- 1Probability Equation Questions3 marks
A bag holds 4 red and n blue counters. The probability of taking a red is 1/3. Work out n.
- 2Histograms3 marks
On a histogram the bar for 20 < x <= 30 has a frequency density of 1.5. How many values are in that class?
- 3Surds3 marks
Simplify sqrt(18) + sqrt(18), giving your answer in the form a sqrt(b).
- 4Transforming Graphs y=f(x)3 marks
The point (4, -6) lies on y = f(x). Write down its image on y = f(x) - 2.
- 5Velocity Time Graphs2 marks
A train slows steadily from 32 m/s to rest in 5 seconds. Work out its deceleration.
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