CHAPTER 5
____
1. The formula for an account that earns simple interest is
, where
represents the balance
in the account after t years,
represents the initial deposit, and r represents the interest rate. Paul deposited
$500 into an account that earned 4% simple interest annually. How much was in his account after one year?
a. $20
b. $480
c. $520
d. $540
____
2. Which represents the function
a. (x, y-1)
b. (x, y+1)
____
3. The profit for a company this year was $100,000. Each year the profit increases at a rate of 1.2% per year.
Which function shows the company’s profit as a function of time in years?
a.
b.
c.
d.
____
4. What is
a.
as a vertical translation one unit up using coordinate notation?
c. (x-1, y)
d. (x+1, y)
written as a single power?
b.
c.
____
5. Which shows the function
a.
b.
c.
d.
____
6. What is the range of the function
a.
____
7. The graph of
b.
d.
after a horizontal translation 2 units left?
?
c.
is shown. Which shows
d.
?
____
8. Which correctly compares the y-intercepts of the functions
function
?
a. The y-intercept of
The y-intercept of
b. The y-intercept of
The y-intercept of
c. The y-intercept of
The y-intercept of
d. The y-intercept of
The y-intercept of
____
X=-7
to the basic
is 2 units below the y-intercept of the basic function.
is 2 units below the y-intercept of the basic function
is 2 units above the y-intercept of the basic function.
is 2 units above the y-intercept of the basic function
is 2 units above the y-intercept of the basic function.
is 2 units below the y-intercept of the basic function
is 2 units below the y-intercept of the basic function.
is 2 units above the y-intercept of the basic function
9. What is the solution to the exponential equation
a.
and
b. x=-6
c. x=-5
____ 10. Which is a reflection of the function
a.
b.
.
.
.
.
?
d. x=5
c.
about the horizontal line
d.
?
____ 11. Thomas counts the number of cars he sees in the parking lot of the school each hour of the day. He counted
the following number of cars the first four hours of the day.
Which function represents the number of cars as a function of the number of hours, h?
• 12 cars the first hour
a.
• 24 cars the second hour
b.
• 36 cars the third hour
c.
• 48 cars the fourth hour.
d.
____ 12. The average attendance at a local high school this year was 950 students. Each year the attendance decreases
at a rate of 0.5% per year. What will the average attendance be in three years?
a. 945
b. 941
c. 936
d. 893
____ 13. What is
a. 3
b.4
?
c.21
d.192
____ 14. Which shows the function
a.
b.
c.
d.
after a vertical translation 4 units down?
____ 15. Taylor earned the following amount each day.
• one dollar of the first day
• three dollars on the second day
• nine dollars on the third day
• twenty-seven dollars on the fourth day
a.
b.
c.
d.
Which function represents Taylor’s daily earnings as a function of the number of days, t.
____ 16. What is the equation for the line that represents the horizontal asymptote of the function
?
a. x=0
b. y=0
c. x=25,000
d. y=25,000
____ 17. What is the solution to the exponential equation
a. x=-3
b. x=3
c. x=4
d. x=5
?
____ 18. Brenda deposited $225 into an account that earns 7.25% compound interest. How much will be in her account
after six years? Round to the nearest cent.
a. $342.43 b. $241.31
c. $231.44
d. $16.31
____ 19. Which equation has the following four characteristics?
• is an exponential function.
• is continuous.
• is increasing.
• is translated 5 units up from
.
a.
b.
c.
d.
____ 20. The velocity v in meters per second (m/s) of a free-falling object that has fallen h meters is given by the
equation
. If an object is dropped from a height of 62 meters, what is the velocity of the object
when it hits the ground? Round to the nearest tenth.
a. 4.4 m/s b. 11.1 m/s
c. 34.9 m/s
d. 1215.2 m/s
_____ 21. Sam deposited $200 into an account that earns simple interest of 8% per year. If he never withdrawls any
money, then what will be his balance after 20 years.
______22. In question #21 what would Sam’s balance after 20 years if he could earn compound interest?___________
Chapter 6
_____1.Samuel pays $59.99 plus $0.25 for each minute over 450 minutes for his cell phone plan. Monica pays $64.99
plus $0.10 for each minute over 450 minutes for her cell phone plan. Which system of equations represents this
situation? Let x represent the number of minutes over 450.
a.
b.
c.
d.
____2.Which system of equations is best
3.
Solve this system of equations
solved by using substitution?
a.
a.
b.
c.
d.
b.
c.
d.
____
4. Jonathon and Raymond earn a base salary plus commission. Jonathon earns $1500 plus 10% of his sales each
month. Raymond earns $1200 plus 15% of his sales each month. How much will Jonathon and Raymond
need to sell in order to earn the same amount each month?
a.
$60
b. $6000
c. $21,000
d. $54,000
____
5. Solve this system of equations.
____
6. Download Central offers a free membership and unlimited mp3 downloads for $25 each month. Save &
Download charges $5 each month for a membership and $1 per mp3 download. How many mp3s must Grant
download for the cost at both companies to be the same?
a. 5
b. 15
c. 20
d. 30
____
7. Which would be the best method to use to solve this system of equations?
a.
b.
c.
d.
____
graphing
substitution
linear combinations
A solution cannot be found.
8. Solve this system of equations.
____
9.
Solve this system of equations
____ 10. The graph shows the amount of profit for two companies. What does the solution
a.
b.
c.
d.
represent?
The two companies never have the same amount of profit.
After three years, the companies both have $425 in profit.
After two years, the companies both have $425,000 in profit.
After three years, the companies both have $425,000 in profit.
____ 11. Solve this system of equations.
____ 12. A cable company offers two movie plans. One plan costs $120 per month plus $5 per movie. The other plan
costs $150 per month for unlimited movies. How many movies must Neil rent in order for the plans to cost
the same amount?
a. 5
b. 6
c. 25
d. 30
____ 13. When is graphing a system of equations a good method to determine a solution?
a.
b.
c.
d.
when the numbers are easy to graph
when an exact solution is needed
when one variable can be easily isolated
when the coefficients of like terms are multiples
____ 14. Solve this system of equations.
a.
b.
c.
d.
____ 15. How many solutions does this system of equations have?
a.
b.
c.
d.
0
1
2
infinitely many
____ 16. Which would be the best method to use to solve this system of equations?
a.
b.
c.
d.
graphing
substitution
linear combinations
A solution cannot be found.
____ 17. Solve this system of equations.
a.
b.
c.
d.
____ 18. Two plumbers charge different rates for service. The first plumber charges $100 per service call plus $25 per
hour of service. The second plumber charges $50 per service call plus $50 per hour of service. After how
many hours do the plumbers charge the same amount?
a. 0
b. 1
c. 2
d. 3
____ 19. How many solutions does this system of equations have?
a.
b.
c.
d.
0
1
2
infinitely many
____ 20. A phone company has two long distance calling plans. The first plan is $25 per month for unlimited long
distance calling. The second plan is $10 per month plus $0.05 per minute of long distance calling. After how
many minutes of long distance calls will it be cheaper for a customer to purchase the first plan?
a. 100
b. 150
c. 300
d. 500
Chapter 7
____
1. Marli has $1200 in her savings account. She wants at least y in her account at the end of the year. She
withdraws $150 each month. Which inequality represents this situation, where x is the number of months?
a.
b.
c.
d.
____
2. A company produces white rice and brown rice. There is an expected demand of at least 200 pounds of white
rice and 50 pounds of brown rice each day. A total of at least 300 pounds of rice must be produced each day.
Which system of linear inequalities represents the constraints of this situation? Let x represent the number of
pounds of white rice and y represent the number of pounds of brown rice.
a..
____
b.
b.
c.
b.
c.
d.
5. The graph of which inequality would be represented with a dashed line?
a.
____
d.
4. Which system of linear inequalities is represented by the graph?
a.
____
d.
3. Curb Side Taxi charges a flat rate of $2.25 plus $0.50 per mile. Taxi-4-You charges a flat rate of $1.25 plus
$0.75 per mile. Nicole has no more than y dollars to spend on a tax ride. Which system of inequalities can be
used to determine the better deal? Let x represent the number of miles.
a.
____
c.
b.
6. Which is a solution to the system of linear inequalities?
a.
b.
c.
d.
c.
d.
____
7. Which is a solution to the inequality
?
____
a.
b.
c.
d.
8. Which shows the solution to the system of linear inequalities?
a.
c.
b.
d.
____ 9. A baker is baking cookies and brownies. It takes 12 minutes to bake a batch of cookies and 20 minutes to
bake a batch of brownies. Each batch of cookies uses 1 cup of flour and each batch of brownies uses 5 cups of
flour. The baker has 10 hours available and 100 cups of flour. The baker makes a profit of $8 on each batch of
cookies and $10 on each batch of brownies. How many batches of cookies and brownies should the baker make
in order to maximize profit?
a.
b.
c.
d.
0 batches of cookies and 0 batches of brownies
0 batches of cookies and 20 batches of brownies
50 batches of cookies and 0 batches of brownies
25 batches of cookies and 15 batches of brownies
____ 10. Which is a solution to the system of linear inequalities?
____ 11. Which is a solution to the system of linear inequalities?
a.
b.
c.
d.
a.
b.
c.
d.
____ 12. Which inequality is represented by the graph?
a.
b.
c.
d.
____ 13. A principal wants to order at least 800 math books. The company has 500 math books in their warehouse.
They also have 600 math books in a storage unit. It costs $3 to ship a math book from the warehouse. It costs
$5 to ship a math book from the storage unit. Which system of linear inequalities represents the constraints of
this situation? Let x represent the number of math books shipped from the warehouse and y represent the
number of math books shipped from the storage unit.
a.
b.
c.
d.
____ 14. Which system of linear inequalities is represented by the graph?
a.
b.
c.
d.
____ 15. Anna knits pairs of mittens and scarves. She knits at most 18 pairs of mittens and 12 scarves each month. She
has enough yarn to knit 24 items per month. Each pair of mittens sold earns a profit of $3 and each scarf sold
earns a profit of $4. How many pairs of mittens and scarves should Anna knit in order to maximize her profit?
a.
b.
c.
d.
18 pairs of mittens and 6 scarves
12 pairs of mittens and 12 scarves
0 pairs of mittens and 24 scarves
24 pairs of mittens and 0 scarves
____ 16. Which shows the solution to the system of linear inequalities?
b.
a.
c.
d.
____ 17. Brady has at most 60 minutes to ride his bike and job. He bikes at a speed of 0.4 mile per hour and jogs at a
speed of 0.1 mile per hour. He wants to travel a distance of at least 12 miles. The system of linear inequalities
represents this situation.
What does the solution (20, 40) represent?
a.
b.
c.
d.
Brady can ride his bike for 20 minutes and jog for 40 minutes to travel 60 miles.
Brady can ride his bike for 40 minutes and jog for 20 minutes to travel 60 miles.
Brady can ride his bike for 20 minutes and jog for 40 minutes to travel 120 miles.
Brady can ride his bike for 20 minutes and jog for 40 minutes to travel 12 miles.
____ 18. Which system of linear inequalities is represented by the graph?
a.
b.
c.
d.
____ 19. Doug has 2000 baseball cards. He wants at least y baseball cards in his collection by the time he graduates. He
buys 25 baseball cards each week. Which inequality represents this situation, where x is the number of weeks?
a.
b.
c.
d.
____ 20. Manu is buying bottled water and sports drinks to sell at a concession stand. He has no more than $450 to
purchase drinks. He can order up to 300 drinks. Each bottle of water costs $1 and each sports drink costs $2.
Which graph represents this situation? Let x represent the number of bottles of water and y represent the
number of sports drinks.
a.
c.
b.
d.
Chapter 8
____
1. Which data set is skewed to the right?
a.
b.
c.
____
d.
2. What is the mean of this data set?
2
____
2
4
6
6
8
9
11
a.
b.
c.
d.
5
6
7
8
3. What is the interquartile range (IQR) of this data set?
3
____
3
4
5
9
12 18 20 22 24 25
a.
b.
c.
d.
12
18
22
39
4. Which table contains data for which the median is the best measure of center?
a.
b.
c.
d.
____
5. Which data set would you expect to have the lowest standard deviation?
a.
c.
b.
d.
____
6. Which data set has a median of 8?
a. 4, 5, 6, 8, 9, 14, 17
____
b. 4, 5, 6, 7, 8, 9, 10
c. 4, 6, 7, 9, 11, 12, 13
d.
4, 8, 8, 9, 10, 10, 10
7. Which data set does the box-and-whisker plot represent?
a. 4, 5, 5, 5, 7, 13, 14
____
b. 4, 5, 5, 7, 8, 12, 14
a.
b.
c.
d.
8. What is the lower fence of this data set?
25 27 28 30 30 31 38
____
c. 4, 6, 9, 9, 11, 12, 14
18
21
25
27
9. What is the standard deviation of this data set?
2
4
4
5
7
a.
b.
c.
d.
8
____ 10. Which is the best measure of spread for this data set?
13 40 40 41 41 42 43 63 67
9
d. 4, 6, 9, 11, 12, 12, 14
2
2.5
3
3.5
a.
b.
c.
d.
interquartile range
median
standard deviation
mean
____ 11. Which statement correctly describes the data set represented by the box-and-whisker plot?
a.
It has no outliers. b. It has one outlier at 1.
____ 12. What is the median of this data set?
2
2
5
6
6
8
9
11
c. It has one outlier at 10
a.
b.
c.
d.
5
6
7
8
____ 13. What conclusion can you draw from the graph?
a. Fewer than half the swimmers are younger than age 13.
b. Only 7 of the swimmers are younger than age 8.
c. There are an equal number of swimmers less than 10 years
old and older than 14 years old.
d. The number of swimmers who are 14 and older is equal
to the number of swimmers younger than age 12.
d. It has outliers at 1 and 10
____ 14. What is the mean of the data set represented by this stem-and-leaf plot?
Stem
Leaf
1
1
2
2
0
0
1
3
4
0
0
1
2
3
8
4
1|2 12
a.
b.
c.
d.
2
24
28
31
33
____ 15. The box-and-whisker plot describes the number of laps students ran around a track. What information does
the plot show?
One-fourth of the students ran between 2 and 4 laps.
The students ran an average of 5 laps.
Three-fourths of the students ran between 3 and 6 laps.
Half of the students ran 5 or more laps.
a.
b.
c.
d.
____ 16. What is the median of the data set represented by this stem-and-leaf plot?
Stem
Leaf
1
0
1
1
2
1
1
3
3
4
2
0
2
1
4
3
a.
b.
c.
d.
6
24
26
27
29
1|0 10
____ 17. Which is the best measure of center for this data set?
8
15 38 38 39 39 40 42 65 70
a.
b.
c.
d.
interquartile range
median
standard deviation
mean
____ 18. Which is the best estimate for the mean of the data represented by this box-and-whisker plot?
a. 25.3
b. 27.4
c. 27.9
d. 29.2
____ 19. What is the lower fence of this data set?
a.
b.
c.
d.
22 24 25 25 26 27 28 28 28 30 30
18
19.5
20
20.5
____ 20. The box-and-whisker plot describes the number of books per student a class checked out from the
school library one month.
According to the plot, what percent of the students checked out between 6 and 8 books?
a. 20%
b. 25%
c. 50%
d. 75%