Intro Algebra Vocabulary

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 is the variable in 3x - 5

• x

• 5

• 3

What is the value of d in the following equation?
15 + d = 27

• 13
• 12
• 14
• 8

a mathematical sentence stating that two expressions are equal

• term

• coefficient

• equation

• variable

An equation...

• has an equal sign

• does NOT have an equal sign

Which of the following is an expression?

• 5x + 2 - 8 = 25

• 14 = 5y

• 2h + 8

• 9 - r = 17

What is the vocabulary word for the y in this expression: -5y + 4?

• variable

• constant

• coefficient