How do you describe the end behavior of f(x)=-1/x^3+2?

1 Answer
Dec 17, 2016

As x->+-oo, f(x)->2

Explanation:

The end behavior of a function is the behavior of the graph of the function f(x) as x approaches +oo (positive infinity) or -oo (negative infinity).

As here f(x)=-1/x^3+2, as x->oo, -1/x^3->0 and f(x)->0+2=2

and as x->-oo, -1/x^3->0 and f(x)->0+2=2

In between as x->0, f(x)->oo when x approaches 0 from positive side and f(x)->-oo when x approaches 0 from negative side.
graph{-1/x^3+2 [-9.79, 10.21, -2.12, 7.88]}