HELP FAST PLEASE ANSWER FOR A FAN :)

Pauline's cell phone bill is $39.99 a month for a fixed amount of minutes. For any minute she goes over the allowed amount, she is charged $0.50 per minute. The equation (y = 39.99 + 0.50x) represents her phone bill, where y is the total bill and x is the number of minutes.

Which variable is the independent variable?

A.
x

B.
y

C.
There is no relationship between the variables.

Question

HELP FAST PLEASE ANSWER FOR A FAN :)

Pauline's cell phone bill is $39.99 a month for a fixed amount of minutes. For any minute she goes over the allowed amount, she is charged $0.50 per minute. The equation (y = 39.99 + 0.50x)  represents her phone bill, where y is the total bill and x is the number of minutes. 

Which variable is the independent variable?


 A.
x
 
 B.
y
 
 C.
There is no relationship between the variables.

anonymous · Answer

the independent variable does what it wants, and the dependent variable must follow the independent one

which one of them is following, and is thus dependent? the counting hours, or the bill for the phone usage?

anonymous · Answer

I don't know :/ would it be a b or c? @mathessentials