The function f(x) is shown in the graph.

Graph in two parts. Part one is increasing from negative infinity in quadrant three to pass through negative 3 comma negative 2 and negative 1 comma 2 and continues increasing upward in quadrant two. Part two is increasing from negative infinity in quadrant 4 and passes through 1 comma negative 2 and 3 comma 2, then continues increasing upward to the right in quadrant one.

Which type of function describes f(x)?

Exponential
Logarithmic
Rational
Polynomial