Lesson 1 General Mathematics

• Relation involves the association or pairing of a set of information.
• A rule that relates values from a set of values (domain) to a second set of values (range).
• x is called the input, independent variable, domain, or abscissa.
• x is called the input, independent variable, domain, or abscissa.
• y is called outputs, dependent variable, range, or ordinate.
• y is called outputs, dependent variable, range, or ordinate.
• Function is a relation where each element in the domain is related to only one value in the range.
• Relation can be represented by set of ordered pairs, table of values, and mapping
• One to many, when more than one element of x is paired with the same element of y.
• Many to one, when more than one element of x is paired with the same element of y.
• One to one, when each element of x is paired with one and only one or a unique element of y.