Daily Practice · Higher Plus

Daily Practice - Higher Plus

Grades 8-9 - exam-stretch algebra, geometry and reasoning.

1st September 1998

5 questions · 14 marks · Grades 8-9 · 51 question types in this band

1
Probability Equation Questions3 marks
A bag holds 4 red and n blue counters. The probability of taking a red is 1/3. Work out n.
2
Histograms3 marks
On a histogram the bar for 0 < x <= 5 has a frequency density of 3.5. How many values are in that class?
3
Surds3 marks
Expand and simplify (3 + sqrt(6))(3 - sqrt(6)).
4
Transforming Graphs y=f(x)3 marks
The point (4, -2) lies on y = f(x). Write down its image on y = f(-x).
5
Velocity Time Graphs2 marks
A train slows steadily from 40 m/s to rest in 8 seconds. Work out its deceleration.

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