Parts of Expressions

Front

What is a coefficient in an expression?

Back

A coefficient is the number that is multiplied by a variable in an expression. For example, in the expression 94a, 94 is the coefficient.

Front

Is the expression 5w an expression?

Back

Yes, 5w is an expression because it contains a variable and a coefficient.

Front

What is a variable?

Back

A variable is a letter that represents a number in an expression. For example, in the expression 5x, x is the variable.

Front

What is the term for the number being multiplied by a variable?

Back

The term is called the coefficient.

Front

How many terms are in the expression 5x + 3y - 15 + x?

Back

There are 4 terms in the expression: 5x, 3y, -15, and x.

Front

What is an expression?

Back

An expression is a combination of numbers, variables, and operations (like addition and multiplication) that represents a value.

Front

What is a constant in an expression?

Back

A constant is a fixed value that does not change. For example, in the expression 3x + 5, 5 is the constant.

Front

What does it mean to simplify an expression?

Back

To simplify an expression means to combine like terms and reduce it to its simplest form.

Front

What are like terms?

Back

Like terms are terms that have the same variable raised to the same power. For example, 3x and 5x are like terms.

Front

What is the difference between an expression and an equation?

Back

An expression does not have an equal sign, while an equation does. For example, 3x + 2 is an expression, but 3x + 2 = 5 is an equation.