MATH 225N WEEK 1 ASSIGNMENT COMPARING SAMPLING
METHODS QUESTIONS AND ANSWERS
A function is shown on the graph below.
a. y = x + 6
b. y = 6x - 6
c. y = x -6
d. y = -6x + 6 - ANSWER: a. y = x + 6
A garden store buys clay pots from a distributor for $15 each and then sells them for
$40 each in the store. What is the profit of each pot as a percentage of the cost price
paid to the distributor?
a. 166.7%
b. 25%
c. 100.5%
d. 187.6% - ANSWER: a. 166.7%
A taxi driver records the following trip details in one day of working:
What was the taxi driver's total distance travelled in that one day?
242.5 miles
248.5 miles
258.5 miles
252.5 miles - ANSWER: 252.5 miles
Algebraic thinking includes several characteristics. Which of the following statements
is not a part of algebraic thinking?
a. The study of patterns, relations, and functions
b. Generalized arithmetic, such as the properties for the operations
c. Using manipulatives to reason about situations
d. A way to use mathematics to solve real problems - ANSWER: Using manipulatives
to reason about situations
An input-output table shown:
Which of the following statements regarding values in this chart is true?
a. All of them
, b. A=B X2 + B
c. B = A \ 3
d. A= B x # - ANSWER: All of them
Crystal needs to buy bread for her party. She knows that one loaf will feed 8 people,
and there are 371 people coming to her party. How many loaves of bread does she
need to buy?
a. 48
b. 46
c. 47
d. 33 - ANSWER: 47
Erica is working on her math homework. She has completed 12 problems, which
represent 60% of her homework. How many total problems are on Erica's
homework?
a. 60
b. 12
c. 18
d. 20 - ANSWER: 20
functions:
a. are the same as equations.
b. are patterns that represent a growing situation.
c. describe a relationship between two variables and may be linear or not.
d. are linear situations in which the independent and dependent variable have a one-
to-one correspondence. - ANSWER: describe a relationship between two variables
and may be linear or not.
Henry works in a bank approving loans. Four bank customers have applied for a loan
today, and Henry has just researched their credit scores:
Henry has his choice of offering an interest rate of 0.75% or 2.50% on loans. Using
only their credit scores as guidance, which two customers should receive the 0.75%
loan?
a. Mr. Allen and Ms. Kash
b. Mr. Weaver and Mrs. Butler
c. Mr. Allen and Mrs. Butler
d. Mr. Weaver and Ms. Kash - ANSWER: Mr. Weaver and Mrs. Butler
METHODS QUESTIONS AND ANSWERS
A function is shown on the graph below.
a. y = x + 6
b. y = 6x - 6
c. y = x -6
d. y = -6x + 6 - ANSWER: a. y = x + 6
A garden store buys clay pots from a distributor for $15 each and then sells them for
$40 each in the store. What is the profit of each pot as a percentage of the cost price
paid to the distributor?
a. 166.7%
b. 25%
c. 100.5%
d. 187.6% - ANSWER: a. 166.7%
A taxi driver records the following trip details in one day of working:
What was the taxi driver's total distance travelled in that one day?
242.5 miles
248.5 miles
258.5 miles
252.5 miles - ANSWER: 252.5 miles
Algebraic thinking includes several characteristics. Which of the following statements
is not a part of algebraic thinking?
a. The study of patterns, relations, and functions
b. Generalized arithmetic, such as the properties for the operations
c. Using manipulatives to reason about situations
d. A way to use mathematics to solve real problems - ANSWER: Using manipulatives
to reason about situations
An input-output table shown:
Which of the following statements regarding values in this chart is true?
a. All of them
, b. A=B X2 + B
c. B = A \ 3
d. A= B x # - ANSWER: All of them
Crystal needs to buy bread for her party. She knows that one loaf will feed 8 people,
and there are 371 people coming to her party. How many loaves of bread does she
need to buy?
a. 48
b. 46
c. 47
d. 33 - ANSWER: 47
Erica is working on her math homework. She has completed 12 problems, which
represent 60% of her homework. How many total problems are on Erica's
homework?
a. 60
b. 12
c. 18
d. 20 - ANSWER: 20
functions:
a. are the same as equations.
b. are patterns that represent a growing situation.
c. describe a relationship between two variables and may be linear or not.
d. are linear situations in which the independent and dependent variable have a one-
to-one correspondence. - ANSWER: describe a relationship between two variables
and may be linear or not.
Henry works in a bank approving loans. Four bank customers have applied for a loan
today, and Henry has just researched their credit scores:
Henry has his choice of offering an interest rate of 0.75% or 2.50% on loans. Using
only their credit scores as guidance, which two customers should receive the 0.75%
loan?
a. Mr. Allen and Ms. Kash
b. Mr. Weaver and Mrs. Butler
c. Mr. Allen and Mrs. Butler
d. Mr. Weaver and Ms. Kash - ANSWER: Mr. Weaver and Mrs. Butler
