Let `f = {(1, 2), (2, 3), (0, -1), ( -1, -3)}` be a linear function from Z into Z. Find `f(x)`.

Explanation

To find the linear function \( f(x) \) represented by the set of ordered pairs \( f = \{(1, 2), (2, 3), (0, -1), (-1, -3)\} \), we can assume that \( f(x) \) can be expressed in the form:

\[ f(x) = ax + b \]

where \( a \) and \( b \) are constants that we need to determine.

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