Answer:
The answer is A..
Step-by-step explanation:
For perpendicular lines, m2 = -1/m1
y = 2x - 8 has a slope of 2, so the perpendicular line will have a slope of -1/2
Required equation is y - 5 = -1/2 (x - 2)
y = -1/2 x + 1 + 5
y = -1/2 x + 6
You know two points on the line:
(0 minutes, 0 gallons) and (8 minutes, 4 gallons) .
The slope of the line is
(4 gallons - 0 gallons) / (8 minutes - 0 minutes) =
(4 gallons) / (8 minutes) =
(4 / 8) (gallons / minutes) =
<em> 1/2 gallons/minute</em> .