Question

Candy bars cost $2 each at the concession stand. In the equation below, x represents the total number of candy bars sold, and y represents the total revenue made selling candy bars. The relationship between these two variables is modeled by the equation y = 2x.

What is the dependent variable?


A) The value of 2 in the equation.
B) The total number of candy bars sold.
C) The total revenue made selling candy bars.
D) It cannot be determined from the given information.

Answer 1

ANSWER IS B!!!!!

Answer 2

C) The total revenue made selling candy bars.

Explanation:

A dependent variable is one whose values depends on another variable. In y = 2x, the value of the variable y depends on x; therefore, y is the dependent variable. And since y is the total revenue made selling candy bars, the total revenue made selling candy bars is the dependent variable, which is choice C.

Also, x is an independent variable, because its value does not dependent on anything—we are free to choose whichever value of x we like.