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Q28: Answers – Paper 2 – June 2018
Q28: Answers – Paper 2 – June 2018
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Working
f(x) = 5 – x
and
g(x) = 3x + 7
a) Simplify f(2x) + g(x – 1)
f(x) = 5 – x
and
g(x) = 3x + 7
a) Simplify f(2x) + g(x – 1)
b) Solve g–1(x) = 2x
Question
28)
f(x) = 5 – x
and
g(x) = 3x + 7
a) Simplify f(2x) + g(x – 1)
f(x) = 5 – x
and
g(x) = 3x + 7
a) Simplify f(2x) + g(x – 1)
[3 marks]
b) Solve g–1(x) = 2x
[3 marks]