Logan created an equation for a monthly price at each lot, where M is the monthly charge in dollars and P is the number of times he leaves the lot. Pittsburgh's Best: M = 0.10P + 10
Steelers' Place: M = 1.25P

Logan wishes to construct a double line graph for his equations. Which description correctly identifies the independent and dependent variables and where they would be located on a graph?

A
The number of times Logan leaves the lot, P, is the independent variable (x-axis) and the monthly charge, M, is the dependent variable (y-axis).

B
The monthly charge, M, is the independent variable (x-axis) and the number of times Logan leaves the lot, P, is the dependent variable (y-axis).

C
It doesn't matter which is the independent variable and which is the dependent variable when graphing equations.

D
There is no independent variable in this situation.
Pls help me