Suppose your newspaper is trying to decide between two competing desktop publishing software packages: Macro Publish and Turbo Publish. You estimate that if you purchasexcopies of Macro Publish andycopies of Turbo Publish, your company's daily productivity will be

U(x,y) =4x^0.7y^0.1+x

whereU(x,y) is measured in pages per day (Uis called autility function). Ifx=y= 10, calculate the effect of increasingxby 1 unit. (Round your answers to two decimal places.)

pages per day:

Interpret the result.

This means that, if your company now has___________copies of Macro Publish and___________ copies of Turbo Publish, then the purchase of one additional copy of Macro Publish will result in a productivity increase of approximately___________pages per day.