2.1 Notation, Vocabulary, and Manipulation

• In algebra, a number that does not change its value is called a constant
• What is the term for a number multiplied by a variable in an algebraic expression?

  Coefficient
• The term 'variable' refers to a symbol or letter that represents an unknown value in algebra.


  True
• What is the term for combining like terms in an algebraic expression?

  Simplifying
• Match the algebraic term with its definition:

  Variable ↔️ Represents an unknown value

  Coefficient ↔️ Number multiplying a variable

  Constant ↔️ Number with a fixed value

  Term ↔️ Part of an algebraic expression
• The process of removing parentheses from an algebraic expression is called expanding
• What is the term for rewriting an expression as a product of its factors?

  Factoring
• In algebra, a term is a single number, variable, or the product of a number and a variable.
• Expanding an expression involves removing parentheses by multiplying terms.


  True
• What is the result of combining like terms in the expression 3x + 2x - x?

  4x
• Match the algebraic term with its example:

  Variable ↔️ x

  Coefficient ↔️ 5 in 5y

  Constant ↔️ 7

  Term ↔️ 2a
• To simplify an algebraic expression, you combine like terms and perform operations to reduce it to its simplest form.