Productivity and Yield of Cultivated Crops Are Often Reduced by Insect

question 223

Multiple Choice

Productivity and yield of cultivated crops are often reduced by insect pests. The following graph shows the relationship between the yield of a certain crop, f(x) , as a function of the density of aphids x. (Aphids are small insects that suck plant juices.) Here, f(x) is measured in kilograms/ 4,000 square meters, and x is measured in hundreds of aphids/bean stem. By computing the slopes of the respective tangent lines, estimate the rate of change of the crop yield with respect to the density of aphids when that density is 200 aphids/bean stem and when it is 800 aphids/bean stem. ​ ​

• A) - 0.5 when it is 200 aphids/bean stem, - 1.333 when it is 800 aphids/bean stem
• B) 00.5 when it is 200 aphids/bean stem, 01.333 when it is 800 aphids/bean stem
• C) 02 when it is 200 aphids/bean stem, 00.75 when it is 800 aphids/bean stem
• D) - 2 when it is 200 aphids/bean stem, - 0.75 when it is 800 aphids/bean stem

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Definitions:

Job Cost Sheet

A document that tracks the cost associated with a specific job, including materials, labor, and overhead.

Predetermined Overhead Rate

A rate used to allocate manufacturing overhead costs to products or cost objects, calculated before the period begins based on estimated costs and activity levels.

Manufacturing Overhead

This refers to all of the indirect costs associated with the production process, such as utilities, maintenance, and salary of supervisors.

Predetermined Overhead Rate

A rate calculated at the beginning of the accounting period, based on the estimated overhead costs and estimated activity level, used to allocate overhead costs to products.