Cubic Function

Cubic Function

Function defined by a relation in the form f(x) = a\({x^3}\).

The parametric form of the cubic function is f(x) = a(x − h) + k which corresponds to a translation parallel to the coordinate axes of the base cubic function defined by f(x) = \({x^3}\), with, at the centre of symmetry, the coordinate point (h, k).


Here is the graph of the function defined by f(x) = −2(x + 1)³ − 3.  It consists of the graph of the base function that has been dilated by a factor of 2, then translated so that the centre of symmetry is located at the coordinate point (−1, −3).

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