Daily Practice · Higher Plus

Daily Practice - Higher Plus

3rd July 1992

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

1
Vectors Proof Questions3 marks
In a vector proof you find that vector PQ = 3a + 2b and vector RS = 15a + 10b. What does this show about PQ and RS?
2
Probability Equation Questions3 marks
The probability of winning a game is 1/4. A player expects 2 wins. How many games did they play?
3
Histograms2 marks
On a histogram, a 4-wide bar and a 12-wide bar have the same frequency density of 2. How many more values are in the wider class?
4
Surds3 marks
Rationalise the denominator of 21/sqrt(3), giving your answer in its simplest form.
5
Inverse and Composite Functions3 marks
f(x) = 7x - 9. Work out the inverse function f^-1(x).

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