Answer:
0.375 liters per day
Step-by-step explanation:
1.5 / 4 = 0.375 liters per day
If B=0, and A≠0, then
Ax+C=0, or x=-C/A, a constant value.
This signifies L is a vertical line with slope ∞
1/3 - 2/9 - 1/3
= -2/9
(Decimal: -0.222222)
If a line's slope is

, the slope of the perpendicular line is

in this case, the given line has a slope 4, which is 4/1, so the perpendicular line has a slope/gradient