Daily Practice

Higher Plus

6th August 1957

5 questions · 15 marks · Grades 8-9 · 51 question types in this band

1
Vectors Proof Questions3 marks
In a vector proof you find that vector PQ = 4a + 3b and vector RS = 20a + 15b. What does this show about PQ and RS?
2
Probability Equation Questions3 marks
The probability of winning a game is 2/5. A player expects 16 wins. How many games did they play?
3
Histograms3 marks
A histogram has two bars: one 5 units wide with frequency density 0.4, one 20 units wide with density 0.8. How many values in total?
4
Surds3 marks
Expand and simplify (7 + sqrt(10))(7 - sqrt(10)).
5
Inverse and Composite Functions3 marks
f(x) = 7x - 2. Work out the inverse function f^-1(x).

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