Question: Total: 20 Marks 1. Find the domain of a function r- 4 f(I) = 1 12 - 91 + 18 [6 Marks] 2. Let 21

Total: 20 Marks 1. Find the domain of a function r-

Total: 20 Marks 1. Find the domain of a function r- 4 f(I) = 1 12 - 91 + 18 [6 Marks] 2. Let 21 + 7 g(x) = 5c - 3 (a) Find the domain of g(x). (2 marks) (b) Show that g(x) is one-to-one (1-1) function. (2 marks) (c) Find the range of g(x)

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