# Algebra 1 Chapter 1

## 41 terms · Mathness

### Natural Numbers

1,2,3,4,5,6,7,8,9,10...etc...(counting numbers)

### Whole Numbers

0,1,2,3,4,5,6,7,8,19....etc...(Counting numbers plus zero)

### Integers

Whole numbers plus opposites

### Rational Numbers

A number that can be written as a fraction (perfect squares)

### Irrational numbers

A number that can not be written as a fraction

### Variable

The unknown; the letter that represents a number

### Algebraic Expression

A math statement that contains at least one variable and numbers with at least one mathematical operation

### Factors

Numbers that are multiplied

### Product

Result to a multiplication problem

### Power

An expression like 5 to the 2nd power

### Base

The number x which is repeatedly being multiplied

### Exponent

The number which indicates the number of times the base is used as a factor

### Evaluate

Find the value of an expression

### X Cubed

X to the third power can also be known as...?

### X Squared

X to the second power can also be known as...?

### Open sentence

A mathematical statement with one or more variables. Neither true or false. Ex: 2x + 4 = 10

### Solution

The replacement value for the variable

### Set

A collection of objects or numbers

### Element

Each number in the set

### Solution set

The set of numbers that make the solution set true

5+0=5

123+0=123

6*1=6

5*1=5

8*0=0

5*0=5

3 * 1/3 = 1

400 * 1/400 = 1

2+2=2+2

5+0=5+0

x=3 so 3=x

9n=81 so 81=9n

### Transitive

2+3 = 1+4 and 1+4 = 5 so 2+3 = 5

### Transitive

5+4 = 7+2 and 7+2 = 9 so 5+4 = 9

5+5
10

7*7
49

### Distributive Property

a (b+c) = a(b) + a(c)

3+2 = 2+3

45 = 54