Introducing Algebraic Variables

What is the variable in 3x - 5

• x

• 5

• 3

a symbol for an unknown value; usually a letter (such as a, x, or y) is the symbol used

• constant

• variable

• coefficient

• term

What variable typically represents the domain?

• x

• y

What is the definition of a variable?

• A letter or symbol that represents an unknown quantity

• The little number or letter used to raise to a power

• The number in front of a variable

• The number with no variable

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

In this expression what is the variable? 
5 + y 

• q

• 5

• y

• +

What are the variables in 3x + y

• 3x

• x,y

• x

• y