Parts of an expression and writing expressions

What makes an algebraic expression?

• There is more than one operation

• There are variables (letters)

• There are only numbers

What is the variable in the following expression?

9z +12

• 9

• Z

• +

• 12

Name the coefficient in the following expression:

8y +10

How many terms does the expression have?

3y+14z-15+z

• 2

• 3

• 4

• 5

What is the constant?

6z + 13- b

The number before a variable is the _____.

• term
• constant
• coefficient
• variable

A letter that represents a number is called a _____.

• variable
• coefficient
• constant
• term

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

• 8
• 1
• 5
• -5

What is the coefficient in this expression?
3x+4-2

• x
• 4
• 3x
• 3

How many terms are in the following expression?
 7y  + 3 - 7k  -2

• 2
• 7
• 4
• 3