## Calculus with Applications (10th Edition)

Concave upward on $$(-\infty, 0).$$ Concave downward on $$(0,\infty).$$ The graph has no inflection points .
Since the graph of the function lies above its tangent line at each point of $(-\infty, 0)$ . So, concave upward on $$(-\infty, 0).$$ Since the graph of the function lies below its tangent line at each point of $(0,\infty)$ . So, concave downward on $$(0,\infty).$$ Since a point where a graph changes concavity is inflection points, therefore the graph has no inflection points