Identifying parts of an expression

Identify a constant in the expression
3x + 2y + 7

• 3
• 2y
• 7
• 2

Identify the coefficient in the expression
4m + n + 2

• 2
• 4
• m
• n

How many terms are in the expression
3x + 2y + z

• 5
• 2
• 4
• 3

Identify the variables in the expression
3x +  9

• x
• y
• 9
• 3x

How many terms are in the expression
3a + 2b + c + 100

• 3
• 4
• 5
• 6

A term can be made up of which of the following?

• a number
• a variable
• a coefficient with a variable
• all of the above

How is the number 9 best described in the expression
9m + 3n + 4

• coefficient
• variable
• constant
• term

What is a variable.

• A number without a letter.

• A number multiplied by a letter.

• A symbol to represent the unknown.

• Parts of the expression separated by plus or minus signs.

What is a constant?

• A term with no variables.

• A number.

• A term with numbers and variables.

• A letter.

Identify the constant in the expression
4y + 2 + x

• x
• y
• 4y
• 2