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Inverse and Composite Functions

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Question 21

Given that f(x)=2x−7f(x) = 2x - 7f(x)=2x−7 and g(x)=5x+8g(x) = 5x + 8g(x)=5x+8

a.

Find gf(6)gf(6)gf(6)

[2]
b.

Work out an expression for f−1(x)f^{-1}(x)f−1(x)

[2]
c.

Solve f(x)=g(x)f(x) = g(x)f(x)=g(x)

[2]

Inverse and Composite Functions Questions

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