6.1-6.2 Algebra Vocabulary & Simplifying Expressions

What are variables in math?

• Letters

• Numbers

• Expressions

A variable represents what is ______________. 

• the answer
• the operation
• the difference
• unknown 

A variable is . . .

• an awesome number

• a number represented by a letter

• an infinite number

• a number multiplied by another number

5p + 4h - 2
Which are the variables? 

• 5p, 4h, 2
• 2
• p, h
• 5, 4

What are the variables in the following expression?

• 3, 4, 1 and 7
• z, x and y
• + and -
• 15

In this expression what is the variable? 
5 + y 

• q
• +
• 5
• y

4 is the __________ of 4n.

• equation
• variable
• coefficient
• solution

things that are being added or subtracted in an expression

• term
• variable
• factor
• coefficient

What is the coefficient of x?
8 + 5x - y

• 8
• 0
• 5
• -5

What is the coefficient:

4 - 2y

• 2

• 4

• -2

• 0