Utility Suppose your newspaper is trying to decide between

Utility Suppose your newspaper is trying to decide between two competing desktop publishing software packages, Macro Publish and Turbo Publish. You estimate that if you purchase x copies of Macro Publish and y copies of Turbo Publish, your company’s daily productivity will be

U(x, y) = 6x ^0.8 y ^0.2 + x,

where U(x, y) is measured in pages per day (U is called a utility function). If x = y = 10, calculate the effect of increasing x by one unit, and interpret the result.