Assertion: second derivative | /r/HasProperty | negative
Facets:
Source sentences:
text: Similarly, a function whose second derivative is negative will be concave down (also simply called concave), and its tangent lines will lie above the graph of the function.
text: The second derivative of a function f measures the concavity of the graph of f. A function whose second derivative is positive will be concave up (also referred to as convex), meaning that the tangent line will lie below the graph of the function.