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7. Identification of reciprocal function and constant function

Reciprocal Function:

A function

$f: \mathbb{R}-{0} \rightarrow \mathbb{R}$ defined by

$f(x) = \frac{1}{x}$ is called a reciprocal function.

The graphical representation of a reciprocal function is given by:

Constant Function:

A function

$f: \mathbb{R} \rightarrow \mathbb{R}$ defined by

$f(x) = c$ , for all

$x \in \mathbb{R}$ is called a constant function.

The graphical representation of a constant function is given by:

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