Page 1 of 29
C957/ WGU - C957 APPLIED ALGEBRA OA EXAM
NEWEST 2026 ACTUAL EXAM QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) ALL ANSWERED {70 Q & A}
ALREADY GRADED A+ | BRAND NEW! | 100%
GUARANTEED PASS | WGU
Your company has given your team a budget of no more than
$1,000 for a project. It is totally acceptable for you to spend no
money on this project if you can creatively find a way to do that.
Which interval represents the amount of money you could spend
on the project?
-[0, 1,000)
-(0, 1,000]
-[0, 1,000]
-(0, 1,000) - ✔✔✔ Correct Answer > -[0, 1,000]
Correct! You could spend no money on the project (thus the
bracket on the "0") or you could spend up to $1,000, meaning you
could spend exactly $1,000 (thus the bracket on the "1,000").
,Page 2 of 29
Suppose Zini decides to mass-produce her lemonade. Using the
function from before, Zini sees that f(10,000)=5,000f(10,000)=5,000,
meaning she could sell 10,000 cups of lemonade for $5,000.
What's the problem with applying the function to this situation? -
✔✔✔ Correct Answer > Every function has a reasonable set of inputs
for a function, the domain in math, on which the function makes
sense. It is unreasonable to go from a lemonade stand (a small-
scale business) to mass-production without considering changes
to cost and revenue. So even if the formula works for such large
numbers, sometimes it is not really meaningful to use a function
for such values. Always look at the situation and context to
determine if a number would make sense to plug into the
function.
output variable - ✔✔✔ Correct Answer > The output, represented by
one or more letters, such as m or d(t), produced by a function,
based on the input variable.
table - ✔✔✔ Correct Answer > In math, a logical arrangement of
quantitative data in columns and rows.
trends - ✔✔✔ Correct Answer > A pattern of change in a condition or
process, often represented by a line or a curve on a graph.
Year : Unemployment Rate
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2009 : 9.9%
2010 : 9.3%
2011 : 8.5%
2012 : 7.9% - ✔✔✔ Correct Answer > Year and Unemployment Rate. You
might be interested in seeing how the unemployment rate varies
over the years. In this case, years are not affected by the action
of another variable, so Year is independent. The variation in
Unemployment Rate occurs in response to events happening
over time, so in this case, Unemployment Rate is the dependent
variable.
*You just need to be sure you understand the context of the
problem before you can definitively say which is the independent
variable and which is the dependent variable.
On the Spot Review: Interval Notation - ✔✔✔ Correct Answer > The
trend in this data table can be communicated in interval notation
as [2060, 2085]. This simply states, in abbreviated terminology,
that the years 2060 to 2085 are included here. If these values
were placed in parentheses rather than brackets—that is, (2060,
2085)—it would communicate an intent to examine the years
between 2060 and 2085, excluding the "bookending" years. This
means that all the years from 2061 through 2084 would be part of
the data. One last thing to keep in mind—as a standard of
practice, you do not usually include the bookend years when
describing increasing and decreasing trends over time.
C957/ WGU - C957 APPLIED ALGEBRA OA EXAM
NEWEST 2026 ACTUAL EXAM QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) ALL ANSWERED {70 Q & A}
ALREADY GRADED A+ | BRAND NEW! | 100%
GUARANTEED PASS | WGU
Your company has given your team a budget of no more than
$1,000 for a project. It is totally acceptable for you to spend no
money on this project if you can creatively find a way to do that.
Which interval represents the amount of money you could spend
on the project?
-[0, 1,000)
-(0, 1,000]
-[0, 1,000]
-(0, 1,000) - ✔✔✔ Correct Answer > -[0, 1,000]
Correct! You could spend no money on the project (thus the
bracket on the "0") or you could spend up to $1,000, meaning you
could spend exactly $1,000 (thus the bracket on the "1,000").
,Page 2 of 29
Suppose Zini decides to mass-produce her lemonade. Using the
function from before, Zini sees that f(10,000)=5,000f(10,000)=5,000,
meaning she could sell 10,000 cups of lemonade for $5,000.
What's the problem with applying the function to this situation? -
✔✔✔ Correct Answer > Every function has a reasonable set of inputs
for a function, the domain in math, on which the function makes
sense. It is unreasonable to go from a lemonade stand (a small-
scale business) to mass-production without considering changes
to cost and revenue. So even if the formula works for such large
numbers, sometimes it is not really meaningful to use a function
for such values. Always look at the situation and context to
determine if a number would make sense to plug into the
function.
output variable - ✔✔✔ Correct Answer > The output, represented by
one or more letters, such as m or d(t), produced by a function,
based on the input variable.
table - ✔✔✔ Correct Answer > In math, a logical arrangement of
quantitative data in columns and rows.
trends - ✔✔✔ Correct Answer > A pattern of change in a condition or
process, often represented by a line or a curve on a graph.
Year : Unemployment Rate
, Page 3 of 29
2009 : 9.9%
2010 : 9.3%
2011 : 8.5%
2012 : 7.9% - ✔✔✔ Correct Answer > Year and Unemployment Rate. You
might be interested in seeing how the unemployment rate varies
over the years. In this case, years are not affected by the action
of another variable, so Year is independent. The variation in
Unemployment Rate occurs in response to events happening
over time, so in this case, Unemployment Rate is the dependent
variable.
*You just need to be sure you understand the context of the
problem before you can definitively say which is the independent
variable and which is the dependent variable.
On the Spot Review: Interval Notation - ✔✔✔ Correct Answer > The
trend in this data table can be communicated in interval notation
as [2060, 2085]. This simply states, in abbreviated terminology,
that the years 2060 to 2085 are included here. If these values
were placed in parentheses rather than brackets—that is, (2060,
2085)—it would communicate an intent to examine the years
between 2060 and 2085, excluding the "bookending" years. This
means that all the years from 2061 through 2084 would be part of
the data. One last thing to keep in mind—as a standard of
practice, you do not usually include the bookend years when
describing increasing and decreasing trends over time.
