Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
20th October 2023
- 1Probability Equation Questions3 marks
A bag holds 5 red and n blue counters. The probability of taking a red is 1/2. Work out n.
- 2Histograms3 marks
On a histogram the bar for 0 < x <= 20 has a frequency density of 0.4. How many values are in that class?
- 3Surds3 marks
Rationalise the denominator of 110/sqrt(11), giving your answer in its simplest form.
- 4Transforming Graphs y=f(x)3 marks
The point (-3, 1) lies on y = f(x). Write down its image on y = f(x) - 1.
- 5Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^3. When x = 3, y = 54. Work out y when x = 5.
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