Identifying Parts of an Expression

Front

What is the total cost of x pens at $3 each and y correction tapes at $2 each?

Back

3x + 2y

Front

What is the underlined part of the expression 3w + 5t - 15?

Back

coefficient

Front

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

Back

7

Front

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

Back

coefficient

Front

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

Back

4

Front

What is a variable in an expression?

Back

A symbol that represents an unknown value, e.g., x or y.

Front

Define a term in an algebraic expression.

Back

A single mathematical expression, which can be a number, variable, or the product of numbers and variables.

Front

What is a constant in an expression?

Back

A fixed value that does not change, e.g., 5 in the expression 3x + 5.

Front

What does the term 'coefficient' refer to in an expression?

Back

A numerical factor in a term, e.g., 3 in 3x.

Front

How do you identify the variable in an expression?

Back

Look for letters that represent unknown values, e.g., x or y.