Parts of an Expression

Parts of an Expression

Unit 2- Algebraic Expressions and Equations

​Vocabulary

• ​term

  • ​parts of an expression (separated by addition/subtraction)

• variable

  • a symbol that represents​ an unknown number (a letter)

• ​coefficient

  • ​the number part of a term with a variable

• ​constant

  • ​a term without a variable (a number)

​Algebraic Expression: an expression that contains numbers, variables, and at least one operation

​

like terms: terms that have the same variables raised to the same exponents.​

Multiple Choice

$$3x-7+2y+12-x$$  

What is 3?

• term

• constant

• variable

• coefficient

Multiple Choice

$$3x-7+2y+12-x$$  

What is 12?

• term

• constant

• variable

• coefficient

Multiple Choice

$$3x-7+2y+12-x$$  

What is -1?

• term

• constant

• variable

• coefficient

Multiple Choice

$$3x-7+2y+12-x$$  

What is y?

• term

• constant

• variable

• coefficient

Multiple Choice

$$3x-7+2y+12-x$$  

What is 2y?

• term

• constant

• variable

• coefficient

Multiple Choice

$$3x-7+2y+12-x$$  

How many terms are in the expression?

• 3

• 4

• 5

• 6

How to tell what sign the term should have...

​The operation in front of the term can be used to determine if your term is positive or negative!

​

​

​2x + 19 - 4y

the terms are... 2x, 19, and -4y

​Vocabulary

• ​term

  • ​parts of an expression (separated by addition/subtraction)

• variable

  • a symbol that represents​ an unknown number (a letter)

• ​coefficient

  • ​the number part of a term with a variable

• ​constant

  • ​a term without a variable (a number)

​Algebraic Expression: an expression that contains numbers, variables, and at least one operation

​

like terms: terms that have the same variables raised to the same exponents.​