Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
13th January 2026
- 1Conditional Probability3 marks
A bag holds 8 red and 3 blue counters. Two are taken without replacement. Given the first was red, what is the probability the second is blue?
- 2Histograms3 marks
On a histogram the bar for 60 < x <= 70 has a frequency density of 2.4. How many values are in that class?
- 3Surds3 marks
Expand and simplify (9 + sqrt(5))(9 - sqrt(5)).
- 4Transforming Graphs y=f(x)3 marks
The point (-6, 4) lies on y = f(x). Write down its image on y = f(-x).
- 5Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^3. When x = 2, y = 48. Work out y when x = 4.
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