Gen Math

• Functions

  many of the equations used to describe real life. relationships between two quantities are Functions.

  In many situations in science, business and mathematics, a correspondence exists betricen two sets of objects.

  The correspondence is often described by a table, an equation, or a graph.

  For example: To each person there corresponds an age. To each item in a store there corresponds. a price. To each circle there corresponds an area. To each cellular phone there corresponds a mobile number.

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• Definition of functions a function & From a set D to a set R is a correspondence or rule that pairs each element of D(within) with exactly one element of R. The set D is called the domain of F, and the set R is called the range of Food Functions defined as set of Ordered Pairs: The sel M = {(2,4), (3,9), (4,16), (5,25) defines a Function since no two ordered pain's have the same component. Domain: 2,3,4,5), 257 Range: 14,9,16, 25