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

Algebraic Functions A function is a rule, correspondence, or mapping $$x \mapsto y$$ that assigns to each real number $$x$$ (the input)… 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 $$y = f\left( x… 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