Expression Vocabulary

Front

What is a symbol for a number we don't know yet, usually represented by a letter like x or y?

Back

Variable

Front

What is a number with no variable attached called?

Back

Constant

Front

In the expression 5x - 9, what is the coefficient?

Back

5

Front

Identify the like terms in the expression: 2x + 4y - 3x + y - x.

Back

2x and -3x and x, 4y and y

Front

What is x + 3?

Back

EXPRESSION because it doesn't have an equal sign.

Front

What do we call terms that have the same variable raised to the same power?

Back

Like Terms

Front

What is the term for a number in front of a variable in an expression?

Back

Coefficient

Front

What is the difference between an expression and an equation?

Back

An expression does not have an equal sign, while an equation does.

Front

What is the value of the constant in the expression 7x + 4?

Back

4

Front

In the expression 3x + 2y - 5, what are the coefficients?

Back

3 and 2