Given that g(x)=x2+4g(x) = x^2 + 4g(x)=x2+4 find:
g(6)g(6)g(6)
g(−2)g(-2)g(−2)
Solve: g−1(x)=5g^{-1}(x) = 5g−1(x)=5, where g−1g^{-1}g−1 denotes the inverse of g g\,g restricted to inputs x≥0x\geq 0x≥0.
136 exam-style questions on OCR GCSE Maths Inverse and Composite Functions. Each one has a worked solution and a mark scheme showing where the marks go.