Parts of an Expression

A term can be made up of a number, a variable, a coefficient with a variable, or all of the above.

The constant in the expression is 2.

There are 4 terms in the expression.

The coefficient in the expression is 4.

A letter that represents a number is called a variable.

A variable is a symbol (usually a letter) that represents an unknown number.

A coefficient is a number that is multiplied by a variable in an expression.

A constant is a fixed value that does not change.

Count the number of separate parts in the expression, separated by '+' or '-' signs.

A term is a single mathematical entity, while an expression is a combination of terms.