Answer:
y = -0.2x + 8
Step-by-step explanation:
To write a linear function, calculate the rate of change of the gallon of water leaving the tank and the starting level.
The function will describe the number of gallons over time or (time, gallons).
This means the function has data points (1, 7.8) and (9, 6.2).
Use the rate of change or slope formula to calculate it.

This means that for the formula y = mx+b then m = -0.2.
This also means that after losing 0.2 gallons the first hour it was at 7.8. So the starting value is 8 gallons.
The equation is y = -0.2 x + 8.
Answer:
straight line ,
Step-by-step explanation:
because you can see that the line is straight ,
Answer:
If your wanting to find the difference in these numbers or trying to gind the sum of them... It would be -1
Step-by-step explanation:
Answer:
57
Step-by-step explanation:
It would have to be awnser choice (a thank me