AnswersFL-1200330-Algebra 2 CRModeling with Rational Functions

Modeling with Rational Functions — Unit test Answers

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Graph the function y=x3+3x2-1. Based on the graph, what is the least possible x-value if y=0? Round your answer to the nearest hundredth, if necessary.

-2.88
Option
-2.00
Option
-0.65
Option
-0.53
Option
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Sophia’s parents notice that she is using the internet often. What steps can they take to help ensure internet safety? Select three options. Warn Sophia about listing her home address on social media.Allow Sophia to post images on her social media pages. Set up privacy settings and firewalls to restrict access to certain sites.Tell people about Sophia’s detailed blog post of an upcoming family vacation.Remind Sophia to limit what she shares with other people in online chat groups.

A
Warn Sophia about listing her home address on social media.
B
Allow Sophia to post images on her social media pages.
C
Set up privacy settings and firewalls to restrict access to certain sites.
D
Tell people about Sophia’s detailed blog post of an upcoming family vacation.
E
Remind Sophia to limit what she shares with other people in online chat groups.
225

Read the example of a party platform:We support electronic voting. We also believe in online registration: more citizens need to be able to participate in the election process.What best explains the party’s primary goal?

A
get more citizens involved in elections
B
get more citizens to vote by computer
C
get more citizens to register to vote online
D
get more citizens involved in politics
226

Which statement best describes the demilitarized zone on the Korean peninsula?

A
It separates Pyongyang from Seoul.
B
It serves as a neutral diplomatic zone.
C
It separates the Korean peninsula from China.
D
It serves as a neutral zone between the countries.
227

Which method is an easy way to find a short description of a function?

A
In the Insert Function dialog box, click the function name to get a short description.
B
Open Help from the Backstage view to find a list of functions.
C
Insert the function and right-click it in the cell to access a description.
D
Use the Search tool to find a list of functions and their descriptions.
228

How is the Democratic Party similar in beliefs to the Federalists?

B
Both strongly opposed slavery.
B
Both were formed because of a dispute.
B
Both supported a strong central government.
B
Both were organized on federal and state levels.
229

Which of these was true of the Contras during the Nicaraguan civil war?

A
The Contras overthrew the Somoza government.
B
The Contras received support from the U.S. government.
C
The Contras overthrew the Sandinista government.
D
The Contras received support from the Soviet Union.
230

All of the following economic changes were seen in Oklahoma as a result of World War II except __________.

A
more women entered the workforce
B
the wages of the nations workers’ increased
C
military and manufacturing sectors developed
D
people moved from urban to rural areas
231

This table compares the requirements for a career as an athletic trainer or an air traffic controller. A student who is interested in becoming an air traffic controller will make

Question illustration
A
more money than an athletic trainer but will have a harder time finding a job.
B
more money than an athletic trainer and will have an easier time finding a job.
C
less money than an athletic trainer but will have an easier time finding a job.
D
less money than an athletic trainer and will have a harder time finding a job.
232

Which sentence features a present participial phrase functioning as an adjective?

A
Blushing furiously, the newcomer couldn’t believe he’d been so gullible.
B
Fatigued after a long day, the woman recuperated with a quiet evening.
C
Our teacher likes to spring impromptu tests on us so we keep studying.
D
The heat radiating from the pavement caused the air to ripple and waver.
234

best

T
Television programs can be streamed to mobile devices through the Internet.
T
Television programs can be streamed through mobile devices to the Internet.
T
The Internet makes it possible to use GPS technology on televisions.
T
Television makes it possible to use GPS technology on the Internet.
235

Which sentence uses whether correctly?

Question illustration
A
It is time to find out whether Janey chose the truck or the sedan.
B
London, England, is known for its blustery and wet whether.
C
Strong whether can affect air, land, and sea travels.
D
I only turn on the radio to catch the whether and traffic reports.
237

Consider this image.

Question illustration
a
as an informative tool explaining how to transplant potted crops
a
as a persuasive device showing the potential of a community garden
a
as an informative tool providing the names and functions of plant parts
a
as a persuasive device proving the importance of irrigation systems
238

Read the excerpt from The Canterbury Tales.Dear brethren, God forgive you your trespass,And keep you from the sin of avarice;My holy pardon here can save you all,And will, so long as you make offeringsOf gold and silver coin, spoons, brooches, rings—Bow down your heads before this holy bull!Come, ladies, make an offering of your wool!I’ll put your name down on my prayer-roll,And you shall enter to the bliss of heaven

A
Chaucer criticizes the practice of confessing one’s sins to a priest.
B
Chaucer criticizes the notion that divine forgiveness depends on giving money.
C
Chaucer criticizes the idea that people go to heaven after death.
D
Chaucer criticizes the fact that clergymen earn more than peasants.
239

Read the excerpt from "Keynote Address.”Under the health measures first proposed by the Presidency of our most beloved Harry S. Truman and passed during the remarkable administration of Lyndon B. Johnson, 20 million older Americans are now protected under Medicare. Our elder Americans can now live their autumn years in dignity and security. And infant mortality has declined to a new low. And federally funded community health centers are now serving nearly 50 million Americans. These too are vital foundations, and on them we must build fuller lives for our citizens.And since 1963, President Johnson has proposed and Congress had enacted more than 40 major new laws to foster education in our country. Since 1963, our Government has tripled its investment in education, and in the past four years alone, we have invested twice as much as was spent in the previous 100 years. These are the foundations from which towers of human achievement can soar.The last 11 years have seen the passage of the five civil rights laws passed during the entire history of the United States, and I might note in passing that Lyndon Baines Johnson is the author, chief architect, or primary sponsor of each of the civil right laws. When all summers are long and hot, it is well to remember that the 100 years of the Emancipation Proclamation is finally but slowly but becoming a reality. And the occupants of some of our highest offices are testimony that black talent is just as important as white talent.Working together, we have done much. We can, and we must do much, much more.

A
by presenting the results of polls
B
by including opinions of government officials
C
by presenting numerous facts and statistics
D
by challenging the audience to do more
240

Solve the Law of Cosine: for cos C.

Question illustration
A
cosine C = StartFraction square of a + square of b minus square of c over 2ab EndFraction
Option A
B
cosine C = StartFraction square of a + square of b + square of c over negative 2ab EndFraction
Option B
C
cosine C = StartFraction square of c minus square of a minus square of b over 2ab EndFraction
Option C
D
cosine C = StartFraction square of negative c + square of a + square of b over negative 2ab EndFraction
Option D

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