. 1. Consider the equation 3x2 - 2x - 1 = 0. The sum of the roots of this equation is 1 2 -1/3 2/3 None of the above 2. For x > 0, which of these statements best describe the graph of y = x.25? The slope is greater than zero and is decreasing. The slope is greater than zero and is increasing. The slope is less than zero and is decreasing. The slope is less than zero and is increasing. None of the above 3. Let p = the price in dollars charged for the dose of a drug. Suppose that the annual demand (in millions of doses) = 1000 - 3p. The annual supply (in millions of doses) = 600 + 2p. The annual supply will equal the annual demand if the price of a dose is ______ dollars. Top of Form 4. Let q = the annual demand in pounds for a drug and p = the price per pound of the drug. Suppose that q = 1,000,000p-6. Also suppose that you want to "invert the demand curve" and express price as a function of demand. Which of the following is an expression of the inverse demand curve? Top of Form p = 0.10q-1/6 p = 10q6 p = 10q-1/6 p = 0.10q-1/3/10 None of the above 5. Suppose that a total of $10 million will be allocated to the first three finishers in the Springfield Derby horse race in the ratio 7:2:1. The total amount received by the 2nd- and 3rd-place finishers in the race is Top of Form $7 million $5 million $3 million $1 million None of the above 6. The fixed cost of developing a new drug is $3 billion. The unit cost of producing a single dose of the drug is $1, and patients are charged $11 per dose. In order to make a $1 billion profit on the drug, how many doses must be sold? Top of Form 300,000,000 350,000,000 400,000,000 500,000,000 None of the above 7. When simplified, 18 + 4 × 9/22 + 5 equals _____________. Top of Form 8. Suppose that Ln x = -3. Rounded to the nearest hundredth, what does x equal? Top of Form 20.09 0.05 0.10 0.50 None of the above 9. For x = 2, the slope of the function f(x) = x4 - 3x2 is Top of Form 10 25 15 30 None of the above 10. For x = 1/2 the second derivative of f(x) = 2x-2 is Top of Form 3/4 100 192 25 None of the above 11. What is the complete set of numbers for which f(x) = x3 + 2x2 - x is concave? Top of Form x ≥ -2/3 x ≥ -3/2 x ≥ 3/2 x ≥ 1 None of the above 12. The inflection point for f(x) = x3 - 3x2 + x + 5 is Top of Form x = 0 x = 1 x = -1 x = 2 None of the above 13. The unit cost of producing a steak dinner at the Smalltown Inn is $6. If a restaurant charges p dollars for a steak dinner, customers will demand 200 - 5p steak dinners per week. To maximize the profit earned on steak dinners, what price should the inn charge? Top of Form $20 $21 $22 $23 $25 14. Today is January 1, 2020. On January 1 of the years 2021 through 2030, you are to receive $50,000. If cash flows are discounted at 10% per year, the present value of these cash flows (as of today), rounded to the nearest dollar, is Top of Form ...

1. .;
.......•.
Examination
Lesson 2: Revising and Editing
Examination Number: 050413
Whichever method you use in submitting your exam answers to
the school, you must
use the number above.
When you feel confident that you have mastered the material in
Lesson 1~go to
http://www.takeexamsonline.com and submit your answers
online. If you don't
have access to the Internet, you can phone in or mail in your
exam. Submit your
answers for this examination as soon as you complete it. Do not
wait until
another examination is ready.
Questions 1-4: Read the following passage, and then choose the
best answer for
each question.

2. (1)While most people think of space as the next frontier, there
is another frontier closer
to home. (2) It is the underground frontier, and the pioneers
probing it are amateur cave
explorers, or cavers. (3) Many of their discoveries come by
accident, when they are
looking for one thing and find another. Just such an accident
occurred recently when
cavers exploring a cavern in Croatia found the world's deepest
hole. (4)Its depth is
1,693 feet, which is 217 feet deeper than the previous record
holder in Austria.
(5) , the Empire State Building is 1,454 feet high. (6) In fact,
climbing the
Empire State Building would probably be just as difficult as
descending into this
Croatian hole. (7)The Croatian discovery is not the deepest cave
on Earth, however.
(8)According to cavers, a "hole" is a straight vertical drop that
is too steep to walk down;
_____ a "cave" descends more gradually, without such a steep
drop.
Which sentence is off the point of the paragraph?

3. Sentence 1
1.
A.
B.
c.
@
Sentence 2
Sentence 4
Sentence 6
12
2. Which transitional word or phrase inserted into Sentence 5
would aid coherence?
@ To put that measurement in perspective
B. Regardless
C. For your information
D. An important fact to keep in mind
3. Which sentence would provide the best support for Sentence
7?
@ It takes a special type of person, careful training, and superb
equipment to go

4. down safely into an extremely deep hole.
B. Nobody earns a living at caving; all cavers support
themselves with separate full-
time jobs.
C. The deepest cave is the 5, 130-foot-deep Krubera Cave in the
Asian country
of Georgia.
D. Croatia is in southern central Europe, and its capital is
Zagreb.
4. Which transitional word or phrase inserted into Sentence 8
would aid coherence?
A. And
B. Whereas
....§) Therefore
D. More to the point
Questions 5-8: Read the following passage, and then choose the
best answer for
each question.
(1)Mosquitoes have always been an annoyance to humans.
(2)However, with the
presence in the United States of West Nile virus and fierce
Asian tiger mosquitoes, any

5. way of avoiding these pests has become increasingly important.
(3) , many
homeowners may be interested to know about a recently
patented birdbath that kills
mosquito eggs. (4)A birdbath is essentially a pool of standing
water. (5) Mosquitoes have
in common with most insects the ability to lay many eggs at one
time. (6)Operating on
batteries, solar power, or electricity, the birdbath is equipped
with a small computer
chip. (7) , this chip instructs a pump to flush out the birdbath's
water.
(8)Then, the water is forced through a fine-mesh filter. (9)Any
mosquito eggs in
the water are crushed as they go through the filter.
I~
13
,--..... 5.
~
C.
D.
6.

6. ~
B.
C.
D.
~
~
C.
D.
8.
W
B.
Which sentence is off the point of the paragraph?
Sentence 2
Sentence 4
Sentence 5
Sentence 8
Which transitional word or phrase inserted into Sentence 3
would aid coherence?
Therefore
Also

7. But
Meanwhile
Which transitional word or phrase inserted into Sentence 7
would aid coherence?
At the bottom
Every few days
Nevertheless
On the other hand
Which sentence would provide the best support for Sentence 4?
Standing water is precisely where mosquitoes prefer to lay their
eggs.
This is why birds find birdbaths to be nonthreatening and
excellent sources
of water.
C. Although mosquitoes prefer mud puddles or water in ditches,
they will use
birdbaths if no other water is available.
D. Birdbaths, however, come in all shapes, sizes, and colors.
Questions 9-10: Choose the least cliched, most appropriate
figure of speech to fill
in the blank.

8. 9. Many people thought women would die like if they were too
physically active.
A. a butterfly in a whirlwind
B. dogs in a fight
flies on flypaper
an old tree
14
10. During World War II, a women's baseball league drew
spectators like _
when a shortage of male players depleted men's teams.
A. moths to a flame
~ a snake in the grass
C. bears to honey
D. bees to a field of poppies
Questions 11-23: Read each sentence or phrase. If its
construction and word
usage is correct, choose "No change." If there's an error, choose
the revision that

9. best represents the traits of good writing.
1l. Livingwith gusto. That's what many people yearn for.
A. To live with gusto are what many citizens yearn for.
B. To live with gusto. That's what many of us yearn to do.
C. Livingwith gusto is what many Americans yearn to do.
~ No change
12. I was sitting on a log bridge, while the sun sinks low in the
sky.
A. I was sitting on a rotting log bridge over Campbell's Creek
while the sun sinks low
in the western sky, almost gone from view.
~ As I was sitting on the rotten log bridge over Campbell's
Creek, the sun sank low
in the sky.
C. The sun sank low in the sky, when I sit on the rotten log
bridge over the creek.
D. No change
13. The region has dry, sandy soil. Always blown about by the
ever-present wind.
A. Dry, sandy soil. It is blown into strange formations by the
ever-present wind.

10. B. The ever-present wind blows the region's dry, sandy soil into
strange formations.
C. The region has dry, sandy soil always being blown into
strange formations by the
ever-present wind.® No change
15
14. The climbers had choices. To go over a cliffor to turn back.
They decided
to try it.
~. The climbers had two choices: to go over a four-hundred-foot
cliff or to turn back.
~ey decided to make the attempt.
B. The climbers had two choices. To go over a four-hundred-
foot cliff or to turn
back. They decided to try it.
C. Presented with two choices, to go over a four-hundred-foot
cliff or to turn back,
they tried it.
D. No change
15. E. B. White died in 1985 even though his work continued to
inspire readers.

11. Q Although E. B. White died in 1985, his work continues to
inspire readers.
B. E. B. White died in 1985, and his work continued to inspire
readers.
C. Until E. B. White died in 1985, his work continued to inspire
readers.
D. No change
16. Juggling a portfolio, art box, illustration boards, and
drawing pads, I asked Jane
Alooked ridiculous.
0) As I juggle a portfolio, art box, illustration boards, and
drawing pads; I ask Jane
if I looked ridiculous.
B. Because I can hardly balance a portfolio, art box, illustration
boards, and
drawing pads I have looked ridiculous to Jane.
C. Carrying a portfolio, art box, illustration boards, and
drawing pads, Jane told me
I looked ridiculous.
D. No change
17. Organized crime has been able to attract graduates just as
big business has.
With good pay and the best equipment money can buy.

12. A. Organized crime have been able to attract graduates just as
big business has:
with good pay and the best equipment money can buy.
B. Just like big business, organized crime has been able to
attract graduates with
good pay and the best equipment money can buy.
C. Organized crime had been able to attract graduates just as
big business has with
good pay and the best equipment money can buy.C) No change
16
18. Joan Didion investigated politics. Also extremely intriguing
to the great writer has
been the exploration of human emotions.
A. Both politics and the exploration of human emotions have
intrigued the great
writer Joan Didion.
B. Joan Didion has investigated politics, while exploring human
emotions has also
extremely intrigued this great writer.
C. The great writer Joan Didion investigated politics. Exploring
human emotions has

13. also intrigued the writer to a great extent.
@ No change
19. Weather reports often give both the air temperature and the
wind chill.
A. In weather reports both the air temperature and the wind
chill are often gave.
B. In weather reports they often given both the air temperature
and also the
wind chill.
C. Both the air temperature and the wind chill were often given
in weather reports.
@ No change
20. Weaving around the barrels with speed and precision, the
audience applauded
,~ very loudly.
A. As the racers wove around the barrels with speed and
precision, the audience
erupted with loud applause.
B. Weaving around the barrels, the racers made the audience
burst into loud
applause because of their speed and precision.
C5 The racers' speed and precision in weaving around the
barrels caused the

14. audience to applaud most loudly.
D. No change
21. The reason the experiment failed is because the lab
equipment was very cruddy.
A. The reason the experiment failed is because of the fact that
the lab equipment
was quite dirty.
B. The experiment failed because the lab equipment was dirty.
C. The experiment failed due to the fact of very dirty lab
equipment.e No change
17
22. Every state in the United States names an officialbird,
flower, and tree.o Every state in the United States names an
officialbird, grows an official flower,
and is known for an official tree.
B. Every state in the United States names an officialbird, an
official flower, and has
an official tree.
C. The states in the United States each names an officialbird,
identifies an official
flower, and picks an official tree.

15. D. No change
23. The Eastern hemlock is not only the state tree of
Pennsylvania but also it is a
species threatened with extinction.
A. The Eastern hemlock is not only the state tree of
Pennsylvania but is a species
threatened with extinction.
B. The Eastern hemlock is both the state tree of Pennsylvania
and also is a species
threatened with extinction.
{9l The Eastern hemlock is not only the state tree of
Pennsylvania but also a species
threatened with extinction.
D.
24.
A.
~.
C.
No change
Choose the sentence that's most effectivelywritten.
Many Americans do not eat well but consume too much junk
almost every day.

16. Many Americans regularly eat snacks loaded with fat, calories,
and salt.
Americans ingest too many snack foods with fat, calories, and
salt every day
or so.
D. Many Americans pig out on junk food most every day even
though it's full of fat,
calories, and salt.
18
25. Choose the sentence that's most effectivelywritten.
~ In a recent study of the American diet, the National Institutes
of Health found
that almost half of home-cooked meals contained no vegetables.
B. According to a recent 2008 study of the foods consumed by
residents of the
United States, most of the meals prepared in the kitchens of
America are vegetable-
deficient.
C. According to the National Institutes of Health in their recent
study of the

17. American diet, almost half of the home-cooked meals served in
this country contains no
vegetables.
D. The National Institutes of Health recently said that a study
showed many
American meals are missing the types of food that are good for
them.
26. Choose the sentence that's most effectivelywritten.
A. Harry Houdini, whose real name at birth was Ehrich Weiss,
made the claim that
he had been born in Appleton, Wisconsin, but in actual fact he
was born into the world
in Budapest, Hungary.
B. Even though Harry Houdini, whose real birth name was
Ehrich Weiss, claimed
that he had been born in Appleton, WI, but he was born in
Budapest, Hungary.
C. Harry Houdini, whose real name was Ehrich Weiss, claimed
that he had been
born in Appleton, Wisconsin, but in fact he was born in
Budapest, Hungary.
r:i) Although Harry Houdini claimed he was born in Appleton,
Wisconsin, he was
born in Budapest, Hungary as Erich Weiss.

18. Questions 27-30: Select the correct classification for each
sentence.
27. The screen door creaked and banged when Abby ran into the
house.
@9 Complex, declarative
B. Simple, declarative
C. Compound, imperative
D. Complex, imperative
28. Should he admit his mistake, or should he keep quiet and
hope to avoid
discovery?
~. Simple, interrogative
B. Compound-complex, interrogative
C. Complex, interrogative
D. Compound, interrogative
19