Prerequisites Flashcards
Variable
A letter used to represent various numbers
Algebraic Expression
A combination of variables and numbers using the operations of addition, subtraction, multiplication, or division, as well as powers or roots
Exponential Notation
![](https://s3.amazonaws.com/brainscape-prod/system/cm/317/105/293/a_image_thumb.jpg?1595943749)
Evaluating an Algebraic Expression
To find the value of the expression for a given value of the variable
The Order of Operations Agreement
![](https://s3.amazonaws.com/brainscape-prod/system/cm/317/105/369/a_image_thumb.jpg?1595943885)
Equation
Formed when and equal sign is placed between two algebraic expressions
Formula
An equation that uses variables to express a relationship between two or more quantities
Mathematical Modeling
The process of finding formulas to describe real-world phenomena
Mathematical Model
Formulas, together with the meaning assigned to the variables
Model Breakdown
When a mathematical model gives an estimate that is not a good approximation or is extended to include values of teh variable that do not make sense
Set
A collection of objects whose contents can be clearly determined
Elements
The objects in a set
Roster Method
The braces, { }, indicate that we are representing a set. Uses commas to separate the elements of the set
Set-Builder Notation
The elements of the set are described but not listed.
{x | x is a counting number less than 6}
Read as: “x” –” | “ such that – “x is a counting number less than 6”
Intersection of Sets
![](https://s3.amazonaws.com/brainscape-prod/system/cm/317/106/150/a_image_thumb.jpg?1595946201)
Union of Sets
![](https://s3.amazonaws.com/brainscape-prod/system/cm/317/106/338/a_image_thumb.jpg?1595946237)
Natural Numbers
![](https://s3.amazonaws.com/brainscape-prod/system/cm/317/107/856/a_image_thumb.jpg?1595946334)
Whole Numbers
![](https://s3.amazonaws.com/brainscape-prod/system/cm/317/107/953/a_image_thumb.jpg?1595946359)
Integers
![](https://s3.amazonaws.com/brainscape-prod/system/cm/317/107/962/a_image_thumb.jpg?1595946383)
Rational Numbers
![](https://s3.amazonaws.com/brainscape-prod/system/cm/317/107/966/a_image_thumb.jpg?1595946407)
Irrational Numbers
![](https://s3.amazonaws.com/brainscape-prod/system/cm/317/108/004/a_image_thumb.jpg?1595946450)
Real Numbers
The set of numbers that are either reational or irrational
{x | x is rational or irrational}
Real Number Line
A graph used to represent the set of real numbers
Origin
An arbitrary point labeled as 0 on a number line
Unit Distance
The distance from 0 to 1 on a number line
Positive Numbers
Numbers to the right of 0 on the real number line
Negative Numbers
Numbers to the left of 0 on the real number line
Graphed
On a real number line, placing a dot at the correct location for each number
Inequality Symbols
< and >
Absolute Value
![](https://s3.amazonaws.com/brainscape-prod/system/cm/317/108/683/a_image_thumb.jpg?1595947299)
Properties of Absolute Value
![](https://s3.amazonaws.com/brainscape-prod/system/cm/317/108/730/a_image_thumb.jpg?1595947567)
Distance between Two Points on the Real Number Line
If a and b are any two points on a real number line, then the distance between a and b is given by
a - b | or | b - a | , where | a - b | = | b - a |.
Commutative Property of Addition
![](https://s3.amazonaws.com/brainscape-prod/system/cm/317/109/098/a_image_thumb.jpg?1595948004)
Commutative Property of Multiplication
![](https://s3.amazonaws.com/brainscape-prod/system/cm/317/109/284/a_image_thumb.jpg?1595948048)
Associative Property of Addition
![](https://s3.amazonaws.com/brainscape-prod/system/cm/317/109/327/a_image_thumb.jpg?1595948078)
Associative Property of Multiplication
![](https://s3.amazonaws.com/brainscape-prod/system/cm/317/109/340/a_image_thumb.jpg?1595948117)
Distributive Property of Multiplication over Addition
![](https://s3.amazonaws.com/brainscape-prod/system/cm/317/109/427/a_image_thumb.jpg?1595948155)
Identity Property of Addition
![](https://s3.amazonaws.com/brainscape-prod/system/cm/317/109/445/a_image_thumb.jpg?1595948192)