Which system of equations could be used to solve for the point of intersection of the lines on the graph?

A) y =
3
4
x + 1 and −
4
3
x + 9
B) y =
3
4
x − 1 and −
4
3
x + 9
C) y =
3
4
x − 1 and −
3
4
x + 9
D) y =
4
3
x − 1 and −
4
3
x + 9