Final answer:
When the farmers are not required to compensate for the water cleaning cost, approximately 100 units of output will be produced.
Step-by-step explanation:
To determine the amount of output that will be produced when the farmers are not required to compensate for the water cleaning cost, we need to find the level of output at which the production cost is equal to the revenue from selling the output.
First, let's calculate the production cost equation:
C = 100 + 2y + 0.04y²
Next, let's calculate the revenue equation:
R = 10y
Since the production cost is equal to the revenue, we set the two equations equal to each other:
100 + 2y + 0.04y² = 10y
Now, let's solve the equation:
0.04y² - 8y + 100 = 0
Using the quadratic formula, we find that y ≈ 100.
Therefore, when the farmers are not required to compensate for the water cleaning cost, approximately 100 units of output will be produced.