I would say 2.....sorry if I am wrong
Slope intercept form : y = mx + b
4x - 5y < 1
-5y < -4x + 1
y > 4/5x - 1/5 <== slope intercept form
y - x > 3
y > x + 3 <== slope intercept form
A division problem is unsolved, so it is an unknown factor until ithe problem is solved.