Pcc Math 60 Vocabulary 1.1 - 1.8

Front 1

Absolute Value

Back 1

Absolute value makes a negative number positive. Positive numbers and 0 are left unchanged. The absolute value of x is written |x|. We write |–6| = 6 and |8| = 8.

Front 2

Additive Inverse

Back 2

The opposite of a number. For example, the additive inverse of 12 is –12. The additive inverse of –3 is 3. Formally, the additive inverse of x is –x.

Front 3

Base

Back 3

a in the expression ax. For example, 2 is the base in 2^3.

Front 4

Denominator

Back 4

The bottom part of a fraction.

Front 5

Equation

Back 5

A mathematical sentence built from expressions using one or more equal signs (=).

Front 6

Evaluate

Back 6

To figure out or compute.

Front 7

Exponent

Back 7

x in the expression ax. For example, 3 is the exponent in 23.

Front 8

Expression

Back 8

Any mathematical calculation or formula combining numbers and/or variables using sums, differences, products, quotients (including fractions), exponents, roots, logarithms, trig functions, parentheses, brackets, functions, or other mathematical operations. Expressions may not contain the equal sign (=) or any type of inequality.

Front 9

Factor

Back 9

Any integer which divides evenly into a given integer. For example, 8 is a factor of 24.

Front 10

Formula

Back 10

An expression used to calculate a desired result, such as a formula to find volume or a formula to count combinations.

Front 11

Improper Faction

Back 11

A fraction which has a larger numerator than denominator.

Front 12

Integer

Back 12

All positive and negative whole numbers (including zero)

Front 13

Irrational Number

Back 13

Real numbers that are not rational. Irrational numbers include numbers such as , , , π, e, etc.

Front 14

Like Terms

Back 14

Terms which have the same variables and corresponding powers and/or roots. Like terms can be combined using addition an subtraction.

Front 15

Mixed Number

Back 15

A number written as the sum of an integer and a proper fraction. For example, 5¾ is a mixed number.

Front 16

Model

Back 16

An equation or a system of equations representing real-world phenomena. Models also represent patterns found in graphs and/or data.

Front 17

Natural Number

Back 17

The numbers used for counting. That is, the numbers 1, 2, 3, 4, etc.

Front 18

Negative Number

Back 18

A real number less than zero. Zero itself is neither negative nor positive.

Front 19

Numerator

Back 19

The top part of a fraction.

Front 20

Positive Number

Back 20

A real number greater than zero. Zero itself is not positive.

Front 21

Prime Number

Back 21

A positive integer which has only 1 and the number itself as factors.

Front 22

Product

Back 22

The result of multiplying a set of numbers or expressions.

Front 23

Rational Number

Back 23

All positive and negative fractions, including integers and so-called improper fractions. Formally, rational numbers are the set of all real numbers that can be written as a ratio of integers with nonzero denominator.

Front 24

Reciprocal

Back 24

The reciprocal of x is . In other words, a reciprocal is a fraction flipped upside down. Multiplicative inverse means the same thing as reciprocal.

Front 25

Simplify

Back 25

To use the rules of arithmetic and algebra to rewrite an expression as simply as possible.

Front 26

Solution

Back 26

Any and all value(s) of the variable(s) that satisfies an equation, inequality, system of equations, or system of inequalities.

Front 27

Term

Back 27

Parts of an expression or series separated by + or – signs, or the parts of a sequence separated by commas.

Front 28

Variable

Back 28

A quantity that can change or that may take on different values. Variable also refers to a letter or symbol representing such a quantity.

Front 29

Whole Number

Back 29

The numbers 0, 1, 2, 3, 4, 5, etc.