Question

Which best describes the graph of the cubic function f(x) = x3 + x2 + x + 1?

As x increases, y increases along the entire graph.
As x increases, y increases, decreases, and then increases again.
As x increases, y decreases, increases, and then decreases again.
As x increases, y decreases along the entire graph.

Answer 1

As x increases, y increases along the entire graph.