WGU C957 Applied Algebra OA Exam Questions and Answers

A company has the following information on last quarter's sales (month 7 refers to July): Month Sales (in thousands of dollars) 7 303 8 328 9 333 What was the average rate of change over the entire quarter (from July to September)? - CORRECT ANSWER Sales increased an average of $15,000 per month. An IT firm generates the following numbers to estimate its revenue in thousands of dollars based on the number of employees working on a project. Employees Revenue (in thousands) 10 $12.40 20 $21.99 30 $30.74 40 $36.01 50 $38.43 Which conclusion can be made by examining the average rate of change between consecutive rows? - CORRECT ANSWER The revenue is increasing at slower and slower rates in relation to the number of employees. An airplane was cruising at an altitude of 39,000 feet and descended as shown in the table below. Descent of Airplane Altitude of Airplane (ft.) Time(min.) 39,000 0 33,000 10 27,000 20 21,000 30 15,000 40 9,000 50 3,000 60 What can be concluded from this table? - CORRECT ANSWER The airplane had a descent rate of 600 ft./min. Depreciation of Company Automobile Year (y) Value (V(y)) 2006 $22,800 2007 $18,240 2008 $15,504 2009 $13,178 2010 $11,201 2011 $9,521 2012 $8,093 2013 $6, 879 2014 $5,847 2015 $4,970 V(2007) = $18,240 is the value of the car from January to December of 2007. Which other conclusion can be reached from this table? - CORRECT ANSWER V( y) decreases the most from 2006 to 2007. The salvage or depreciated value, V, of a new t he original value of a company car bought in January of 2006 was $22,800. Below is a function table that tracks the value of the car V( y) as it depreciates.