The marginal productivity of a manufacturing process is give

The marginal productivity of a manufacturing process is given by

where x is the amount of investment (in thousands of dollars) and y is the number of units produced per month (in hundreds). Production is 2300 units when investment is $5000. Find the production level if investment is increased to:

a) $8000

b) $11,000

Solution

i think that

b) $11,000