Cartesian Coordinate System We saw that a point P on a number line can be specified by a real number called its coordinate.... Click here to read more

Algebra Functions A function is a rule, correspondence, or mapping that assigns to each real number (the input) in a certain set... Click here to read more

Graph of a Function The graph of a function f is defined to be the graph of the corresponding equation . In other words,... Click here to read more

Geometric Properties of Graphs The graph in Figure 1 (a) is always rising as we move to the right, a geometric indication that the... Click here to read more