F= -1 2/3 or 5/3
In order to find the answer all you have to do is multiply both sides by -4/3.
-3/4f × -4/3 = f
-4/3 × 5/4 = -20/12
-20/12 simplified is -5/3 or -1 2/3
Vertex = (1/2,5/2) x= 1 + or - square root of 5-2y all over 2
The best answer would be 2 feet hope this helps!
At 0 gallons it will be $0 as you haven’t got any
At 6 gallons, it will be 6 times 3 which is $18
At 12 gallons, it will be 12 times 3 which is $36
So the graph which is correct is GRAPH B
