3.1 Practice

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

• 3

• 2y

• 7

• 2

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

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

• x
• y
• 4y
• 2

A number with no variable attached is called a  _____.

• coefficient
• constant
• variable
• term

The number before a variable is the _____.

• term
• constant
• coefficient
• variable

A letter that represents a number is called a _____.

• variable
• coefficient
• constant
• term

How many coefficients are in expression?

• 1
• 2
• 3
• 4

Find the coefficient in the algebraic expression.

• x
• 4
• 5
• 9