IB skill practice

Compose linear functions

Find and evaluate composite linear functions using function notation, substitution order, and simplified algebra.

Paper 1 6 marks Difficulty 3

Extract features after composition

After composing \(f(x)=2x + 5\) with \(g(x)=-2x + 1\), find the gradient, \(y\)-intercept, and value of \((f\circ g)(5)\).

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