A variable i a quantity that can change; the word alo refer to the letter or ymbol that repreent thi quantity. In a proportional relationhip, one variable i the independent variable, and one i the dependent variable. They are often called "x" and "y," but any letter can be ued. The value of the dependent variable depend on the value of the independent variable. In the relationhip between number of coop of ice cream and total price, we can call number of coop "x" and total price "y. " Y i dependent becaue it value depend on x, the number of coop you purchae. Urula make $5 for every 1 dog he walk. In the relationhip between dollar earned and dog walked, ________ i the dependent variable, which i often called ________
