Exploring Parts of an Expression

The video tutorial introduces students to the parts of an expression, focusing on variable terms, constant terms, and coefficients. It explains how to identify these components in mathematical expressions and distinguishes between expressions and equations. The tutorial also provides examples to practice counting terms and identifying coefficients, emphasizing the importance of understanding the signs associated with terms.

What is a variable term in an expression?

• A mathematical operator

• A number with a variable

• A number next to a variable

• A number without a variable

Which of the following is a constant term?

• 14x

• 5x

• 9

• 2x

What is a coefficient in an expression?

• A number next to a variable

• A mathematical operator

• A variable without a number

• A number without a variable

How many terms are in the expression 14x + 9 - 2x + 8 - 5x + 1?

• 6

• 5

• 4

• 7

In the expression 11a + 4a, what are the coefficients?

• a and a

• None

• 11 and 4

• 11a and 4a

In the expression 3x + 6 - 7x - 4, what are the constant terms?

• None

• 3x and 7x

• 6 and -4

• 3 and 7

What is the definition of an expression?

• A number without a variable

• A variable without a number

• A mathematical phrase with an equal sign

• A mathematical phrase with variables, numbers, and operators

Which of the following is NOT an expression?

• 8 - 5x + 1

• 5h = 30

• 2x + 5 - 3y

• 14x + 9 - 2x

In the expression 2k - m + n - 7p, what is the coefficient of m?

• 1

• -7

• 2

• -1

How many terms are in the expression 2k - m + n - 7p?

• 3

• 4

• 5

• 6