Chapter 3 Vocabulary

Equivalent equations – Two equations that have the same solution

            X = 2 and X + 3 = 5 are equivalent

Inverse operations – Inverse operations are operations that undo each other.

            Addition and subtraction

            Multiplication and division

Linear equations in one variable – A linear equations is where the variable is to the first power and is not in the denominator, a square root symbol, or an absolute value symbol.

         Linear equations

         x+ 3 = 5     5 – x = -3

         Non linear equations

         X² -7 = 3      - 3 = 5

Ratio of a to b – A and b need to be quantities measured in the same units then the ratio of a to b is 

                        Ratio of sides of a triangle is

Identity - An equation that has many solutions

            X + 3 = 2 X + 6 - X - 3      (any number you plug in will work)

Formula – An algebraic equation that relates two or more real-life quantities

Rate of a to b - A and b need to be quantities measured in different units then the rate of a to b is 

                        The rate was