Calculus, Artificial Intelligence, Blogging.
increasing and starts decreasing or vice versa is the point of inflexion (POI). Here at (0,0) the slope stops decreasing and starts increasing. And POI is also the point where the function changes concavity. if f``(x) > 0 then concave up if f`(x) <0 then concave down if f`(x) = 0 then possible POI