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WGU C957 PRE-ASSESSMENT: APPLIED ALGEBRA (FXO1)
(PFXO) ACTUAL QUESTIONS AND ANSWERS|LATEST 2026
UPDATE 100% CORRECT
**1.** A delivery company charges a fixed service fee of $18 plus $2.75
for every mile traveled. Which function represents the total cost \(C(x)\)
for a delivery of \(x\) miles?
A. \(C(x)=18x+2.75\)
B. \(C(x)=2.75x+18\)
C. \(C(x)=20.75x\)
D. \(C(x)=18-2.75x\)
**Answer: B**
**2.** A linear function passes through the points \((2,11)\) and
\((8,29)\). What is the slope of the function?
A. 2
B. 3
C. 4
D. 6
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**Answer: B**
**3.** A company's monthly revenue is modeled by
\(R(x)=125x+4,500\), where \(x\) represents the number of units sold.
What does the coefficient 125 represent?
A. The initial revenue
B. The maximum revenue
C. The revenue generated per additional unit sold
D. The number of units sold before revenue begins
**Answer: C**
**4.** A line has equation \(y=-4x+18\). Which statement correctly
describes the relationship between \(x\) and \(y\)?
A. \(y\) increases by 4 whenever \(x\) increases by 1
B. \(y\) decreases by 4 whenever \(x\) increases by 1
C. \(y\) increases by 18 whenever \(x\) increases by 1
D. \(y\) decreases by 18 whenever \(x\) increases by 1
**Answer: B**
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**5.** A population is modeled by \(P(t)=850(1.06)^t\), where \(t\) is
measured in years. What does the value 1.06 represent?
A. An annual decrease of 6%
B. An annual increase of 6%
C. An initial population of 6
D. A fixed increase of 1.06 people per year
**Answer: B**
**6.** An investment of $4,000 grows according to
\(A(t)=4000(1.05)^t\). What is the approximate value after 3 years?
A. $4,200
B. $4,400
C. $4,630
D. $5,200
**Answer: C**
**7.** A bacterial population follows the model \(N(t)=500(2)^t\).
What is the population after 4 time periods?
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A. 1,000
B. 2,000
C. 4,000
D. 8,000
**Answer: D**
**8.** A quantity decreases according to the model
\(A(t)=900(0.82)^t\). What percentage does the quantity decrease by
during each time period?
A. 8%
B. 18%
C. 82%
D. 118%
**Answer: B**
**9.** Which function represents exponential growth?
A. \(f(x)=4x+7\)
B. \(f(x)=x^2+3\)
WGU C957 PRE-ASSESSMENT: APPLIED ALGEBRA (FXO1)
(PFXO) ACTUAL QUESTIONS AND ANSWERS|LATEST 2026
UPDATE 100% CORRECT
**1.** A delivery company charges a fixed service fee of $18 plus $2.75
for every mile traveled. Which function represents the total cost \(C(x)\)
for a delivery of \(x\) miles?
A. \(C(x)=18x+2.75\)
B. \(C(x)=2.75x+18\)
C. \(C(x)=20.75x\)
D. \(C(x)=18-2.75x\)
**Answer: B**
**2.** A linear function passes through the points \((2,11)\) and
\((8,29)\). What is the slope of the function?
A. 2
B. 3
C. 4
D. 6
,2|Page
**Answer: B**
**3.** A company's monthly revenue is modeled by
\(R(x)=125x+4,500\), where \(x\) represents the number of units sold.
What does the coefficient 125 represent?
A. The initial revenue
B. The maximum revenue
C. The revenue generated per additional unit sold
D. The number of units sold before revenue begins
**Answer: C**
**4.** A line has equation \(y=-4x+18\). Which statement correctly
describes the relationship between \(x\) and \(y\)?
A. \(y\) increases by 4 whenever \(x\) increases by 1
B. \(y\) decreases by 4 whenever \(x\) increases by 1
C. \(y\) increases by 18 whenever \(x\) increases by 1
D. \(y\) decreases by 18 whenever \(x\) increases by 1
**Answer: B**
,3|Page
**5.** A population is modeled by \(P(t)=850(1.06)^t\), where \(t\) is
measured in years. What does the value 1.06 represent?
A. An annual decrease of 6%
B. An annual increase of 6%
C. An initial population of 6
D. A fixed increase of 1.06 people per year
**Answer: B**
**6.** An investment of $4,000 grows according to
\(A(t)=4000(1.05)^t\). What is the approximate value after 3 years?
A. $4,200
B. $4,400
C. $4,630
D. $5,200
**Answer: C**
**7.** A bacterial population follows the model \(N(t)=500(2)^t\).
What is the population after 4 time periods?
, 4|Page
A. 1,000
B. 2,000
C. 4,000
D. 8,000
**Answer: D**
**8.** A quantity decreases according to the model
\(A(t)=900(0.82)^t\). What percentage does the quantity decrease by
during each time period?
A. 8%
B. 18%
C. 82%
D. 118%
**Answer: B**
**9.** Which function represents exponential growth?
A. \(f(x)=4x+7\)
B. \(f(x)=x^2+3\)
