The graphical method is an approach used in calculus to solve optimization problems by visually analyzing graphs. It involves identifying critical points and determining whether they correspond to local maxima or minima.
Refers to how a curve bends either upward (concave up) or downward (concave down). It helps determine if critical points are maxima or minima.
Domain Restriction: In optimization problems, this refers to limiting the values of independent variables within certain boundaries due to practical constraints.