Parts of Expressions

Front

What is a variable in mathematics?

Back

A symbol for a number we don't know yet, usually represented by a letter.

Front

Identify the constant in the expression: 7c + 8y + 32

Back

32

Front

What is the variable in the algebraic expression: 3x + 5?

Back

x

Front

How many terms are in the expression: 4a + 5b + 6?

Back

3

Front

What is the '2' called in the term: 2x?

Back

Coefficient

Front

What is a term in an algebraic expression?

Back

A single mathematical expression that can be a number, variable, or the product of both.

Front

Identify the coefficient in the expression: 5x + 3y.

Back

5 (the number in front of the variable x).

Front

What is a constant in an algebraic expression?

Back

A fixed value that does not change, such as 7 in the expression 3x + 7.

Front

How do you identify the number of terms in an expression?

Back

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

Front

What is the difference between a variable and a constant?

Back

A variable can change and is represented by a letter, while a constant is a fixed value.