For the given pair of equations, give the slopes of the lines, and then determine whether the two lines are parallel,
perpendicular, or neither.
14x - 3y = 12
3x + 14y = 56
Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
A. The slope of 14x - 3y = 12 is
(Type an integer or a simplified fraction.)
B. The slope of 14x - 3y = 12 is undefined.