Question
f(x) = 2x − 3 g(x) = x² + 1
[6 marks]
(a)Work out fg(2).
(b)Find gf(x), giving your answer in the form ax² + bx + c.
(c)Find f⁻¹(x).
This question has 3 parts. You don't have to get them all — each part you answer earns its own marks. Write them as (a) … ; (b) … , or just send the one part you worked out.
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