# Math exam 1

## 27 terms

### absolute value

the positive number of any pair of opposite numbers

### Base

the number that is used as a factor with an exponet

### Binomial

a polynomial of only two terms

### consecutive integers

numbers obtained by counting by ones

### Degree of a polynomial

the greatest of the degrees of its terms after it has been simplified

### domain of a variable

the given set of numbers that the variable may represent

### empty set

the set with no members

### equation

a statement formed by placing an equal sign between two numerical or variable expressions

### evaluate an expression

replacing each variable in the expression by a given value and simplifying the result

### factors

when two or more numbers are multiplied, each of the numbers is a factor of the product

### grouping symbols

a device used to enclose an expression that should be simplified before other operations are preformed

### integers

the set consisting of the positive integers, the negative integers, and zero

### identity

an equation that is true for every value of the variable

### monomial

an expression that is either a numeral, a variable, or the product of a numeral and one or more variables

### numerical expression

an expression that names a particular number

### open sentence

a sentence containing one or more variables

### power

the product when a number is multiplied by itself

### quotient

is the result of devision

### real numbers

any number that is either positive, negative, or zero

### similar terms

two monomials that are exactly alike or are the same except for their numerical coefficients

### simplify an expression

replacing an expression containing variables by an equivalent expression with as few terms as possible

### substitution principle

a method of solving a system of linear equations in two variables

### terms

in the sum a+b, a and b are called...

### trinomial

a polynomial of only three terms

### variable

a symbol used to represent one or more numbers

### variable expression

n expression that contains a variable

### whole number

the set consisting of zero and all the positive integers