WGU C957 Pre-Assessment (Latest 2023/ 2024 Update) Applied Algebra| Questions and Verified Answers| 100% Correct| Grade A

WGU C957 Pre-Assessment (Latest 2023/ 2024

Update) Applied Algebra| Questions and Verified

Answers| 100% Correct| Grade A

Q: The graph of the function C below represents the number of coal miners in the United States from 1985 2015.C( y) represents the number of coal miners in the United States in the year y. For example, C(1985) showthere were 170,000 coal miners in the United States in 1985.Which interpretation of the function C is accurate?

Answer: C(2000) represents 70,000 coal miners in 2000.

Q: The following table compares the number of employees hired and the number of employees dismissed over

an 11-year period for a certain business. Year# Hired# Dismissed

What can be concluded from this table?

Answer: More employees were hired than dismissed each year.

Q: A company has the following information on last quarter's sales (month 7 refers to July) :MonthSales (in

thousands of dollars)730383289333 What was the average rate of change over the entire quarter (from July to

September)?

Answer: Sales increased an average of $15,000 per month.

Q: 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?

Answer: The revenue isincreasing atslower and slower rates in relation to the number of employees.

Q: An airplane was cruising at an altitude of 39,000 feet and descended as shown in the table below.

What can be concluded from this table?

Answer: The airplane had a descent rate of 600 ft./min.

Q: The function table below shows a company's revenue function (R) and expense function (E) for each

month. In the second row, R(1) is the revenue total for January, and E(1) is the expense total for January.

Monthly Revenues and Expenses

Month (m) Revenues R(m) Expenses E(m)1

(Jan.) $2,000 $2,2002

(Feb.) $3,220 $3,9573

(Mar.) $2,579 $2,5044

(Apr.) $4,100 $1,6755

(May) $5,328 $2,1226

(June) $6,745 $1,9907

(July) $5,995 $2,1118

(Aug.) $10,200 $3,1839