BJU Press— Algebra 1 Chapter 1

Best of Luck!

Best of Luck!

Reciprocals (multiplicative inverses)

2 numbers whose product is 1

Set

A collection of objects

Unit Multiplier

A fraction made up of equivalent measures, that is equal to one. It is used to convert from one unit to another.

Graph

A point on a number line

Subset

A set that is part of a larger set

Empty Set

A set with no elements

Mathematical Property

An equation or statement that is true for any value of the variables

Subtraction

An operation in which we take away 1 number from another to get a smaller number

Rational Numbers

Any number that can be expressed as a fraction

Zero Power

Anything to the power zero is just "1"

Element or Member

Each object in a set

Negitive Exponents

For any nonzero number "x" and "a", x..-a = 1/x..a

Irational numbers

Has decimal form that neither terminates nor repeats, and it cannot be written as the ratio of two integers

Union of Sets (U)

Is the set of elements that appear in any of the sets.

Division

Multiplying by the reciprocal of the divisor

Negative Numbers

Numbers less than zero

Opposite Number

On a number line, a number that is the same distance away from zero in the other direction

Absolute Value

The distance a number is from zero on a number line

Intersection of Sets

The elements that are common to two or more sets

Origin

The point at zero

Coordinate

The real number that corresponds to a point