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2 marksFunctions

CAPE Pure Mathematics Unit 1 · May/June 2005 · Paper 1 · Question 5(a)

The function f is defined on R by f: x -> -2x + 3.

Show that f is one-to-one (injective).

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Other parts of this question

  1. 5(b)Find the value(s) of x in R such that f(f(x)) = f(x) + 6.[5 marks]

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