MATH 115 HW2 Definitions

Vocabulary flashcards covering mathematical terms, properties, and geometric formulas from MATH 115 HW2.

Difference

Result of subtraction

Quotient

Result of division

Factor

Two expressions that are multiplied together

Commutative Property

The order in which addition or multiplication takes place does not affect the final result.

Associative Property

Changing the grouping for addition and multiplication does not affect the final result.

Identity Property of Addition

$0$ + a number equals the number

Identity Property of Multiplication

$1$ times a number equals the number

Inverse Property of Addition

Adding a number and its opposite results in zero.

Inverse Property of Multiplication

Multiplying a number and its reciprocal results in one.

Absolute value

The distance from $0$ to the number on a number line.

Variable

A letter that represents a number

Constant

A fixed number

Coefficient

The constant number in front of a variable

Exponent

The power of an expression

Expression

Combination of constants, variables, and operations

Domain

The set of values that a variable may assume

Area of a Triangle

$\frac{1}{2}bh\,\text{units}^2$ (squared units)

Area of a Rectangle

$lw\,\text{units}^2$ (squared units)

Area of a Circle

$A = r^2\,\text{units}^2$ (squared units)

Circumference

$$C = 2\pi r\,\text{units}$$

Volume of a Rectangular Box

$lwh\,\text{units}^3$ (cubed units)

Volume of a Sphere

$V = \pi r^3\,\text{units}^3$ (cubed units)