Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
19th September 2023
- 1Vectors Proof Questions3 marks
In a vector proof you find that vector PQ = 2a - 2b and vector RS = 8a - 8b. What does this show about PQ and RS?
- 2Probability Equation Questions3 marks
The probability of winning a game is 7/10. A player expects 14 wins. How many games did they play?
- 3Histograms2 marks
On a histogram, a 5-wide bar and a 20-wide bar have the same frequency density of 1.5. How many more values are in the wider class?
- 4Surds3 marks
Expand and simplify (3 + sqrt(7))(3 - sqrt(7)).
- 5Proof2 marks
In an algebraic proof, how would you write the next even number after 2n in terms of an integer n?
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