Question

You are buying a new internet service. The service costs \$75$75 per month. In the equation below, dd is the total number of dollars that you pay for your service, and tt is the time (in months) that you keep the service.

The relationship between these two variables can be expressed by the following equation:
d=75td=75t
Identify the dependent and independent variables.

Answer 1

the months are independent

as well as the $75

the answer is dependent

Answer 2

d = Dependent variable,

t = Independent variable.

Explanation:

We have been given that the new internet service costs $75 per month. In equation
`d=75t`, d represents total number of dollars that you pay for your service, and t is the time (in months) that you keep the service.

We are asked to determine the dependent and independent variables.

An independent variable is a variable whose values can be freely chosen and dependent variables values depend on other variables.

Since the total number of dollars depends on number of month, therefore, number of dollars (d) is dependent and number of months (t) is independent variable.