Answer:
g = 3
Step-by-step explanation:
miles / gallon = miles / gallon
104 / 4 = 78 / g
cross-multiply to solve for 'g':
78(4) = 104g
312 = 104g
312/104 = g
3 = g
Because the graph is starting high and going down, your answer is c- exponential decay
It has to be (8, 9) because that would put the 4th corner above (8, 7) and right of (2, 9).