The function \(f\) is defined by \(f(x) = 1 + \frac{3}{x-2}\) for \(x > 2\).
(a) State the range of \(f\).
(b) Obtain an expression for \(f^{-1}(x)\) and state the domain of \(f^{-1}\).
A function \(f\) is such that \(f(x) = \sqrt{\frac{x+3}{2}} + 1\), for \(x \geq -3\). Find
(i) \(f^{-1}(x)\) in the form \(ax^2 + bx + c\), where \(a, b\) and \(c\) are constants,
(ii) the domain of \(f^{-1}\).
The function f is defined by \(f(x) = 4x^2 - 24x + 11\), for \(x \in \mathbb{R}\).
(i) Express \(f(x)\) in the form \(a(x-b)^2 + c\) and hence state the coordinates of the vertex of the graph of \(y = f(x)\). [4]
The function g is defined by \(g(x) = 4x^2 - 24x + 11\), for \(x \leq 1\).
(ii) State the range of \(g\). [2]
(iii) Find an expression for \(g^{-1}(x)\) and state the domain of \(g^{-1}\). [4]
The function \(f\) is such that \(f(x) = \frac{3}{2x+5}\) for \(x \in \mathbb{R}, x \neq -2.5\).
Obtain an expression for \(f^{-1}(x)\).
The function \(f\) is such that \(f(x) = (3x + 2)^3 - 5\) for \(x \geq 0\).
Obtain an expression for \(f^{-1}(x)\) and state the domain of \(f^{-1}\).