👉 In mathematics, a concave function is a function that has a "slant" or "curved" shape. This means that it is not flat but instead has an upward or downward slope at each point on its graph. The term "concavity" refers to the type of concavity found in the graph of a given function, and can be defined based on the derivative of the function. For example, consider the function f(x) = x^3 - 4x +
