Algebra

Vocabulary

100

the name for the unknown number that is represented with a letter

variable

200

the name for a number whose value will always remain the same (no variable)

constant

300

the number in front of a variable in a variable term

EX: 5x (what is the 5 called?)

co-efficient

400

A mathematical sentence using numbers, symbols and operations (such as + and ×) but HAS NO = sign

expression

500

A mathematical sentence using numbers, symbols and operations (such as + and ×) but HAS an = sign

equation

Simplifying Expressions

100

2x + 5x

7x

200

2x - 5x

-3x

300

2x·5x

10x²

400

x³·x⁵

x⁸

500

(x³)⁴

x¹²

Graphs

100

What do we call the vertical axis

y = axis

200

What are the "origin" coordinates

(0, 0)

300

What do we call "rise over run" or the "rate of change"

slope

400

What do we call the horizontal axis

x - axis

500

Where do we find the "y - intercept"

where the graph crosses the y-axis

More vocabulary

100

Define "whole numbers"

0, 1, 2, 3, 4, ...

200

Define "integer"

....-5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, ...

300

Define "natural numbers"

1, 2, 3, 4, 5, ...

400

Define "rational numbers"

Numbers that can be written in fraction form:

1/3

2 = 10/5

.6 = 6/10

500

Define "irrational #s"

Numbers that CAN NOT be written as a fraction

.33333

sqrt 5

Mrs. Davis

100

How many sons do I have?

3

200

What do I collect and have way too many of?

Tennis shoes

300

Where do I live?

Madison

400

How many years have I taught here at Edgewood?

0

500

What's the name of my Jeep?

Einstein