Algebraic Representations of Two-Variable Relationships

a variable whose value determines the value of the dependent variable

x value in an equation, table, and graph

time (minutes, hours, days, weeks)

a variable whose value depends on the value of the independent variable

y value in an equation, table, or graph

this value changes

The independent and dependent variable are said to have a multiplicative relationship when you multiply any x-value times the SAME number to get the y value

If it is not the same number every time, it is NOT a multiplicative relationship

The independent and dependent variable are said to have an additive relationship when you add the SAME number to any x-value to get the y value

If it is not the same number every time, it is NOT an additive relationship