GEN-MATH REVIEWER

Relation

is a set of ordered pairs in which each element in the domain corresponds to at least one element in the range

Domain

is the set of all the first components of the ordered pairs

Range

is the set of all the second components of the ordered pairs

Function

is a relation between an input and output

Input (domain)

independent variable

Output (range)

dependent variable

relation

shows a relationship between two values

function

is a relation where each input has only one output

Composition of functions

is an operation where to functions generate a new function

Rational Expression

an expression that can be written as a ratio of two polynomials.

Equation

shows equal value of 2 expressions

Inequality

an expression is lesser than or more than the other

Rational Equation

equations containing rational terms, either in the numerator or enominator, or both /equation involving rational expression

Rational Inequality

that contains a rational equation

Rational Function

polynomials

Rational Equation

2x = 14 = 7x

Rational Inequality

32x > 1

Rational function

q(x) ≠ 0

Domain of Rational Function

consist of all real numbers except what number

Evaluating a function

means finding the value of f(x) or y that corresponds to a given value of x.

range

function is the set of all y values or outputs.

domain

of a function is the set of all x values or inputs