Answer:
B- (0,0) is a solution to n=m and to n=4m.
The two lines will go through (0,0), so this statement is correct.
A- Is incorrect since the lines are not straight, and the lines are still a function.
C- Is incorrect since the two equations are different, so they will not be completely the same.
D- The lines aren't completely the same, but they have some similar solutions.