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Identity Function

EXAMPLE 7

The function f given by the rule

f(x) = x

is called the identity function.

The graph (Figure 1.2.9) of the identity function is the straight line with the equation

y = x.

01_real_and_hyperreal_numbers-39.gif

Figure 1.2.9
Home Real and Hyperreal Numbers Functions of Real Numbers Examples Identity Function

Last Update: 2006-11-14