Daily Practice · Higher Plus

Daily Practice - Higher Plus

9th July 1991

5 questions · 13 marks · Grades 8-9 · 51 question types in this band

1
Vectors Proof Questions3 marks
In a vector proof you find that vector PQ = 6a - 4b and vector RS = 12a - 8b. What does this show about PQ and RS?
2
Probability Equation Questions3 marks
The probability of winning a game is 4/5. A player expects 8 wins. How many games did they play?
3
Histograms2 marks
On a histogram, a 5-wide bar and a 15-wide bar have the same frequency density of 2.5. How many more values are in the wider class?
4
Surds3 marks
Expand and simplify (4 + sqrt(3))(4 - sqrt(3)).
5
The Nth Term of a Quadratic Sequence2 marks
A quadratic sequence starts -1, -2, -1, 2. Work out the second difference, and the coefficient of n^2.

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