Daily Practice · Higher Plus

Daily Practice - Higher Plus

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

15th February 2022

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

1
Probability Equation Questions3 marks
A bag holds 7 counters, r of them red. Two are taken without replacement and P(both red) = 2/7. Work out r.
2
Histograms3 marks
On a histogram the bar for 40 < x <= 45 has a frequency density of 1.5. How many values are in that class?
3
Surds3 marks
Expand and simplify (5 + sqrt(2))(5 - sqrt(2)).
4
Transforming Graphs y=f(x)3 marks
The point (4, 4) lies on y = f(x). Write down its image on y = f(x) + 6.
5
Velocity Time Graphs2 marks
A train slows steadily from 40 m/s to rest in 10 seconds. Work out its deceleration.

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