Key Terms Functions

  • Arithmetic Sequence – a list of numbers with a common difference
  • Absolute Value-   The distance a number is from zero on the number line. Examples: |-4 |= 4 and |3| = 3
  • Additive Inverse – Two numbers that when added together equal 0. Example, 3.2 and -3.2
  • Algebraic Expression – A mathematical phrase involving at least one variable. Expressions can contain numbers and operation symbols.
  • Coefficient – a number that is multiplied by the variable
  • Common Difference- the amount each number in a list of numbers increases or decreases by
  • Equation –   A mathematical sentence that contains an equal sign.
  • Evaluate an Algebraic Expression – To perform operations to obtain a single number or value.
  • Inequality – A mathematical sentence that contains the symbols >, <, ≥, or ≤.
  • Inverse Operation – Pairs of operations that undo each other. Examples: Addition and subtraction are inverse operations and multiplication and division are inverse operations.
  • Like Terms – Monomials that have the same variable raised to the same power. In other words, only coefficients of terms can be different.
  • Linear Equation in One Variable – an equation that can be written in the form ax + b = c where a, b, and c are real numbers and a ≠ 0
  • Relation – a set of ordered pairs.
  • Solution –   the value or values of a variable that make an equation a true statement
  • Solve – Identify the value that when substituted for the variable makes the equation a true statement.
  • Variable – A letter or symbol used to represent a number.