Question 1104050
(x,y) for (Gallons of Fuel, Weight of Plane)


(18,2117)
(44,2286)
(48, v)


Various ways to find v, all very much related.  Just find the line between the first two given points.


{{{y-2117=((2286-2117)/(44-18))(x-18)}}}

{{{y-2117=(169/26)(x-18)}}}

{{{y-2117=(6.5)(x-18)}}}

{{{y-2117=6.5x-117}}}

{{{highlight_green(y=6.5x+2000)}}}------showing that the plane without fuel  is 2000 pounds.


Now {{{v=y=6.5*48+2000}}}

{{{highlight(v=2312)}}}---------when plane has 48 gallons of fuel