Question Paper & Mark Scheme (Merged) June 2025 [VERIFIED]
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outside the
Answer all questions in the spaces provided. box
1 (a) The function f is given by f(x) = 5x + 3
The range is f(x) < 23
Work out the domain of the function, giving your answer as an inequality.
[1 mark]
Answer
1 (b) The function g is given by g(x) = x3 – 4
The domain is –3 < x < 2
Work out the range of the function, giving your answer as an inequality.
[2 marks]
Answer
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1 (c) The function h is given by h(x) = 2x 1
Work out h–1(x)
[2 marks]
h–1(x) =
a
5 0 = 15
2 12
1 6 7 b
Work out the values of a and b.
[2 marks]
a= b=
7
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