AnswersEA Academy Algebra IUnit Test

Unit Test — Unit test Answers

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21
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What are the values of a, b, and c in the quadratic equation 0 = 5x – 4x2 – 2?

A
a = 5, b = 4, c = 2
B
a = 5, b = –4, c = –2
C
a = –4, b = 5, c = –2
D
a = 4, b = –5, c = –2
22
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What are the solutions to x2 + 8x + 7 = 0?

A
x = –8 and x = –7
B
x = –7 and x = –1
C
x = 1 and x = 7
D
x = 7 and x = 8
23

Which is a zero of the quadratic function f(x) = 9x2 – 54x – 19?

A
x =
Option A
B
x = 3
Option B
C
x = 6
Option C
D
x = 9
Option D
24

What are the solution(s) of the quadratic equation 98 – x2 = 0?

A
x =
Option A
B
x =
Option B
C
x =
Option C
D
no real solution
25

A function g(x) has x-intercepts at (, 0) and (6, 0). Which could be g(x)?

Question illustration
A
g(x) = 2(x + 1)(x + 6)
B
g(x) = (x – 6)(2x – 1)
C
g(x) = 2(x – 2)(x – 6)
D
g(x) = (x + 6)(x + 2)
26

Which scenario is an example of a referendum?

A
Citizens in Wisconsin vote on an amendment to the state constitution passed by the legislature that would grant certain rights to crime victims.
B
Citizens in Philadelphia, Pennsylvania, propose a law that would prevent the police from using “stop and frisk” measures.
C
Citizens in Florida speak out against a new law voted on by the state legislature that would reduce funding for the state highway patrol.
D
Citizens in King County, Washington, propose a new law that would require members of the county sheriff’s department to wear body cameras.
27

Which type of court would hear a case involving accusations of illegal activity?

A
civil court
B
family court
C
criminal court
D
housing court
28

Which court has original jurisdiction?

A
the US Supreme Court
B
a state Supreme Court
C
the first court that hears a case
D
the court that hears appeals to a case
29

Ramiya is using the quadratic formula to solve a quadratic equation. Her equation is x = after substituting the values of a, b, and c into the formula. Which is Ramiya’s quadratic equation?Quadratic formula: x =

Question illustration
A
0 = x2 + 3x + 2
B
0 = x2 – 3x + 2
C
0 = 2x2 + 3x + 1
D
0 = 2x2 – 3x + 1
30

The 10th Amendment grants the power to take which of these actions?

A
The US Treasury Department changes the design of the $20 bill.
B
A state decides to switch to mail-in ballots as its main form of voting.
C
The US Congress votes to change the rules related to naturalization.
D
The federal courts overrule a state law that conflicts with a federal law.
31

Which part of Article II, Section 2 of the US Constitution gives presidents the power to fulfill one of their roles as chief diplomat?

A
“He shall nominate, and by and with the Advice and Consent of the Senate, shall appoint Ambassadors.”
B
“He shall nominate, and by and with the Advice and Consent of the Senate, shall appoint . . . Judges of the supreme Court.”
C
“He shall have Power, by and with the Advice and Consent of the Senate, to make Treaties, provided two thirds of the Senators present concur.”
D
“The President shall be Commander in Chief of the Army and Navy of the United States, and of the Militia of the several States, when called into the actual Service of the United States.”
32

Why is a multimedia presentation a good choice for introducing a proposal to a city council?

A
It can be viewed again at a later date.
B
It can take the place of a written document.
C
It can include jokes and be entertaining.
D
It can help persuade city officials to agree.
33

What is an example of a nongovernmental organization that helps protect Earth’s resources?

A
the Environmental Protection Agency (EPA)
B
the Sierra Club
C
a local newspaper
D
a retail chain
34

How does military spending compare to foreign aid spending in the US federal budget?

A
The amount spent on the military is ten times less than the amount spent on foreign aid.
B
The amount spent on the military is more than ten times the amount spent on foreign aid.
C
The amount spent on the military and the amount spent on foreign aid are about equal.
D
The amount spent on the military is slightly more than the amount spent on foreign aid.
35

Lenora is researching an environmental problem. She finds four articles about the issue. Which article title includes biased language?

A
“Recycling Rates Have Not Increased in Recent Years”
B
“California Bans Retail Stores from Providing Plastic Bags”
C
“Public Worries about Plastic Pollution Are Ridiculous”
D
“Marine Mammal Population Reduced by Pollution”
36

What happens during a primary election?

A
Each political party chooses one candidate to run for president.
B
Presidential hopefuls from the same party run against one another.
C
Delegates to the Electoral College choose the winning candidate.
D
Candidates from opposing political parties campaign against one another.
37

Read the scenario. Lakeside is one of the many towns located around a large lake. The lake was created years ago when a utility company built a series of dams to generate electrical power along a river that runs through part of the state. The dam nearest Lakeside is now in need of repair. Residents worry that it might fail and flood the town. They want the government to work with the utility company to fix the problem.

A
city
B
county
C
special district
D
state
38

How do local governments raise most of their revenue?

A
through school tuition from students
B
through taxes and fees paid by citizens
C
through funds from the state government
D
through funds from the federal government
39

Read the section from the US Constitution. The Congress shall have Power To lay and collect Taxes, Duties, Imposts and Excises, to pay the Debts and provide for the common Defence and general Welfare of the United States; but all Duties, Imposts and Excises shall be uniform throughout the United States;To borrow Money on the credit of the United States; To regulate Commerce with foreign Nations, and among the several States, and with the Indian Tribes; —Article I, Section 8 of the US Constitution

A
to list the implied powers of Congress
B
to enumerate the powers of Congress
C
to describe the concurrent powers of Congress
D
to list which powers are reserved for the states
40

Alessandro wrote the quadratic equation in standard form. What is the value of c in his new equation?

Question illustration
A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D

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