2/3/26, 6:16 PM Benchmark 2: Checkpoints 1-2; Attempt review
Calculus 1l / Benchmark 2: Checkpoints 1-2 / Benchmark 2: Checkpoints 1-2
Startedon Sunday, February 1, 2026, 12:55 PM
State Finished
Completed on Sunday, February 1, 2026, 1:19 PM
Time taken 23 mins 59 secs
Grade 75.00 out of 75.00 (100%)
Question 1
Correct
3.75 points out of 3.75
For which of the following values of cwilly = = + % have arelative maximum at z = —5?
Select one:
a.
b. -5
O»
O
<
(85
N
o
Question 2
Correct
3.75 points out of 3.75
If sinxz = e¥, 0 < z < m,which of the following is an expression for % interms of £?
Select one:
a. tanx
b. -cotx
c. cotx¥
d. -tanx
https://moodle.straighterline.com/mod/quiz/review.php?attempt=7113388&cmid=128388 1/9
, 2/3/26, 6:16 PM Benchmark 2: Checkpoints 1-2; Attempt review
Question 3
Correct
3.75 points out of 3.75
The volume of a spherical balloon is increasing at a constant rate of 3 in. At which of the following rates is the radius
of the balloon increasing at the instant its radius is 2 inches?
Select one:
3 .
a. g-in/s
9 .
b. g'&'n / S
g .
C. m'&n / S
d. 3.
=in/s v
Question 4
Correct
3.75 points out of 3.75
z2+1
Find the derivative of y =
2 —1
Select one:
a. —dx
(@ — 1
b. 1
C. 43
(z2 —1)2
d. 4z
(22 —1)2
Question 5
Correct
3.75 points out of 3.75
The deflection of a hardwood beam of length L is given by
D(z) = %w‘l — 7La% + 5L2%x?
where z is the distance from the fixed end of the beam. Which of the following values of z yields the maximum deflection?
Select one:
a. 0
b. 2Ly
3
5L
C. ?
2L 5L
https://moodle.straighterline.com/mod/quiz/review.php?attempt=7113388&cmid=128388 2/9
Calculus 1l / Benchmark 2: Checkpoints 1-2 / Benchmark 2: Checkpoints 1-2
Startedon Sunday, February 1, 2026, 12:55 PM
State Finished
Completed on Sunday, February 1, 2026, 1:19 PM
Time taken 23 mins 59 secs
Grade 75.00 out of 75.00 (100%)
Question 1
Correct
3.75 points out of 3.75
For which of the following values of cwilly = = + % have arelative maximum at z = —5?
Select one:
a.
b. -5
O»
O
<
(85
N
o
Question 2
Correct
3.75 points out of 3.75
If sinxz = e¥, 0 < z < m,which of the following is an expression for % interms of £?
Select one:
a. tanx
b. -cotx
c. cotx¥
d. -tanx
https://moodle.straighterline.com/mod/quiz/review.php?attempt=7113388&cmid=128388 1/9
, 2/3/26, 6:16 PM Benchmark 2: Checkpoints 1-2; Attempt review
Question 3
Correct
3.75 points out of 3.75
The volume of a spherical balloon is increasing at a constant rate of 3 in. At which of the following rates is the radius
of the balloon increasing at the instant its radius is 2 inches?
Select one:
3 .
a. g-in/s
9 .
b. g'&'n / S
g .
C. m'&n / S
d. 3.
=in/s v
Question 4
Correct
3.75 points out of 3.75
z2+1
Find the derivative of y =
2 —1
Select one:
a. —dx
(@ — 1
b. 1
C. 43
(z2 —1)2
d. 4z
(22 —1)2
Question 5
Correct
3.75 points out of 3.75
The deflection of a hardwood beam of length L is given by
D(z) = %w‘l — 7La% + 5L2%x?
where z is the distance from the fixed end of the beam. Which of the following values of z yields the maximum deflection?
Select one:
a. 0
b. 2Ly
3
5L
C. ?
2L 5L
https://moodle.straighterline.com/mod/quiz/review.php?attempt=7113388&cmid=128388 2/9
