6/3/2020 Graded Exam 1
(877) 787-8375 HELP CENTER
MAT250_TW_V3 | Chapter 3: An Introduction to Derivatives
Started on Tuesday, May 19, 2020, 4:35 PM
State Finished
Completed on Tuesday, May 19, 2020, 5:02 PM
Time taken 27 mins
Grade 125.00 out of 125.00 (100%)
Feedback You’re off to a good start. A course grade of 70% is required to request a
transcript. You’ve met that for the rst exam already, but if you want to reattempt
for a higher grade you can retake this assessment (only the rst graded
assessment in this course can be retaken). Study hard for each exam, and
consider using tutoring anytime you get stuck. Remember that 10 hours of
tutoring are provided to you through your StraighterLine membership.
Question 1
x + 1
Correct Determine, if it exists, lim
2
x→3 x − 9
5.00 points out
of 5.00 Select one:
a. The limit does not exist.
10
b. − 6
4
c. − 6
4
d. 6
The correct answer is: The limit does not exist.
https://moodle.straighterline.com/mod/quiz/review.php?attempt=3231735 1/14
, 6/3/2020 Graded Exam 1
Question 2 Marjorie’s school is 2 miles away from her house. If she rides her bicycle to school,
Correct and it takes her 20 minutes to get to school, what is her average rate of speed in
5.00 points out
miles per hour?
of 5.00
Select one:
a. 10 mi / h
b. 1 mi / h
c. 60 mi / h
d. 0.1 mi / h
e. None of the above
The correct answer is: None of the above
Question 3 1
The instantaneous rate of change of a ball (in ft/s) is given by f ′ (x) = . When
√x
Correct
was the ball travelling 2 ft/s ?
5.00 points out
of 5.00 Select one:
1
a. 4
sec
1
b. sec
√2
1
c. 2
sec
d. 1 sec
1
The correct answer is: 4
sec
https://moodle.straighterline.com/mod/quiz/review.php?attempt=3231735 2/14
(877) 787-8375 HELP CENTER
MAT250_TW_V3 | Chapter 3: An Introduction to Derivatives
Started on Tuesday, May 19, 2020, 4:35 PM
State Finished
Completed on Tuesday, May 19, 2020, 5:02 PM
Time taken 27 mins
Grade 125.00 out of 125.00 (100%)
Feedback You’re off to a good start. A course grade of 70% is required to request a
transcript. You’ve met that for the rst exam already, but if you want to reattempt
for a higher grade you can retake this assessment (only the rst graded
assessment in this course can be retaken). Study hard for each exam, and
consider using tutoring anytime you get stuck. Remember that 10 hours of
tutoring are provided to you through your StraighterLine membership.
Question 1
x + 1
Correct Determine, if it exists, lim
2
x→3 x − 9
5.00 points out
of 5.00 Select one:
a. The limit does not exist.
10
b. − 6
4
c. − 6
4
d. 6
The correct answer is: The limit does not exist.
https://moodle.straighterline.com/mod/quiz/review.php?attempt=3231735 1/14
, 6/3/2020 Graded Exam 1
Question 2 Marjorie’s school is 2 miles away from her house. If she rides her bicycle to school,
Correct and it takes her 20 minutes to get to school, what is her average rate of speed in
5.00 points out
miles per hour?
of 5.00
Select one:
a. 10 mi / h
b. 1 mi / h
c. 60 mi / h
d. 0.1 mi / h
e. None of the above
The correct answer is: None of the above
Question 3 1
The instantaneous rate of change of a ball (in ft/s) is given by f ′ (x) = . When
√x
Correct
was the ball travelling 2 ft/s ?
5.00 points out
of 5.00 Select one:
1
a. 4
sec
1
b. sec
√2
1
c. 2
sec
d. 1 sec
1
The correct answer is: 4
sec
https://moodle.straighterline.com/mod/quiz/review.php?attempt=3231735 2/14
