MENU
A and B are the stationary points of f(x).
f(x) = 2x3- x2- 8x + 8
A = (-1,13)
B = (4/3,8/27)
Determine whether each stationary point is a maximum, minimum or point of inflexion.
Suggested Answer: A
Get Premium IFoA_CAA_M0 Questions
as Interactive Web-Based Practice Test or PDF
Real Exam Format
Detailed Explanations
Instant Access
Get Your Practice Test
12 comments · newest first
IL
Iluminada
11 months ago
I thought A might be a point of inflexion too!
GE
German
12 months ago
Pretty sure A is a max, but B as a min? Not so sure.
NE
Nell
12 months ago
Wait, how do we know A is a max?
IN
Ines
12 months ago
Totally agree with that!
MI
Mirta
1 year ago
A is a maximum, B is a minimum.
VI
Vincenza
1 year ago
I’m a bit confused about how to differentiate the function correctly. I hope I remember the steps right when I get to the second derivative part!
QU
Quentin
1 year ago
I think A is a maximum because it’s higher than B, but I’m not confident about B. I might need to check the concavity at that point.
AR
Arlene
1 year ago
I feel like I’ve seen a similar question before, but I’m not entirely sure how to apply the second derivative test here. Is it possible that both points could be inflection points?
KA
Katheryn
1 year ago
I remember we talked about using the second derivative test to determine the nature of stationary points. I think I need to calculate the second derivative first.
SU
Sue
1 year ago
Based on the description, I think in-database masking is the way to go. It should allow me to mask the data with minimal impact on the production environment.
NO
Noble
1 year ago
Okay, let me see. The key elements seem to be offerings, routes to market, pricing, and service agreements. I'll review those and try to match them to the answer choices.
GL
Glory
1 year ago
This seems like a straightforward question about accreditation responsibilities. I'll carefully read through the options and think about which role would have the final say.