I believe you go to the spots on the graph and then just found up from there, and do that with every point
Y = 2.5x - 500
I simplified it a bit, you could write it as y = 5x - 2.5x - 500
<AEB and <DEC are equal so:
5x-10=3x+40
5x-3x=40+10
2x=50
x=25
<AEB= 5x-10
<AEB= 5*25-10
<AEB=115
Divide the given amounts by 21 to find the amount that would be used for 1 gallon.
135 ÷ 21 = 6<span>.42857142857 ml
5.25 </span>÷ 21 = 0.25 0z
1 gallon of gas woud need 0.25 oz/ 6.42857142857 ml of gas treatment
Hope this helps (: