Applied-Algebra 무료 덤프문제 온라인 액세스

In the graph showing the number of daily homework problems assigned for a math class, the horizontal axis shows the number of school days since the beginning of the term and the vertical axis shows the number of daily homework problems.

Which conclusion is correct based on this graph?

• A.The maximum number of daily homework problems is 21 and occurs at day 11.
• B.The minimum number of daily homework problems is 18 and occurs at day 22.
• C.The maximum number of daily homework problems is 29 and occurs at day 3.
• D.The minimum number of daily homework problems is 31 and occurs at day 1.

The number of acres affected by an invasive species can be modeled using the logistic function f(x), where xrepresents the number of months since the species was introduced and f(x)represents the number of affected acres. The graph of f(x)is shown.

What happens as time progresses from month 2 to month 6?

• A.The number of affected acres increases faster and faster.
• B.The number of affected acres increases slower and slower.
• C.The number of affected acres decreases slower and slower.
• D.The number of affected acres decreases faster and faster.

A contractor charges a flat rate plus a fixed rate per hour to come and make repairs. For a job that takes 3 hours, the contractor charges $220. For a job that takes 5 hours, the contractor charges $340.
Which function correctly represents the total charge Cfor a job that takes thours?

• A.C(t)=40t
• B.C(t)=60t+40
• C.C(t)=40t+60
• D.C(t)=60t

The number of members of a religious organization can be modeled using the logistic function f(x), where xrepresents the number of years since the organization was started and f(x)represents the number of members.
The graph of f(x)is shown.

What is one range of values for which the graph is concave down?

• A.(0#6)
• B.(0#8)
• C.(0#11)
• D.(6#11)

The function P(t)represents the weekly profit, in thousands of dollars, for a rental store since opening. The graph of P(t)is shown.

When did the store have its maximum weekly profit?

• A.Approximately 17 years after the store opened
• B.Approximately 5.5 years after the store opened
• C.Approximately 3 years after the store opened
• D.Approximately 7 years after the store opened