MATH QUICK QUESTIONS

Order of Operations

1.Simplify the expressions inside grouping symbols, such as parentheses, brackets, braces, and fraction bars2.Evaluate all powers3.Do all multiplications and divisions from left to right4.Do all additions and subtractions from left to right

(Or just remember PEMDAS)

Algebraic expressions

contain at least one variable

Formula

mathematical sentence that expresses the relationship between certain quantities

Real Numbers

all of the numbers that you use in everyday life

Rational Numbers

A real number that can be written as a fraction. Decimal is either a terminating or repeating decimal.

Irrational Numbers

Any number that cannot be written as a fraction.

Natural Numbers

{1, 2, 3, 4, 5,...}

Whole Numbers

{0, 1, 2, 3, 4,....}

Integers

{…, -3, -2, -1, 0 ,1 ,2,…}

Absolute Value

numerical value of a real number, no matter if positive or negative

Binomial

expression that is the sum or difference of two terms

Cartesian Coordinates

pair of numbers that is used to locate a point

Coefficient

number multiplied times a product of variables

Composite Number

number that is a multiple of at least two numbers other than itself and one

Coordinate plane

graph with two axes and four quadrants

Domain

set of all possible values of an independent variable in a function

Equation

mathematical sentence built from expressions using one or more equal signs

Function

relation for which each element of the domain corresponds to one element in range

Mean

average, found by adding up all numbers in set, then dividing sum by number of data points

Range

set of y values of a function or relation

Origin

represented by two zeros separated by a comma on a coordinate plane