IFoA_CAA_M0 Exam - Topic 6 Question 15 Discussion

Actual exam question for IFoA's IFoA_CAA_M0 exam

Question #: 15
Topic #: 6

[All IFoA_CAA_M0 Questions]

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.

AA is a maximumB is a minimum

BA is a maximumB is a point of inflexion

CA is a minimumB is a maximum

DA is a point of inflexionB is a minimum

Show Suggested Answer

Suggested Answer: A

by Dalene at May 05, 2022, 08:17 PM

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Iluminada

4 months ago

I thought A might be a point of inflexion too!

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German

4 months ago

Pretty sure A is a max, but B as a min? Not so sure.

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Nell

4 months ago

Wait, how do we know A is a max?

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Ines

4 months ago

Totally agree with that!

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Mirta

5 months ago

A is a maximum, B is a minimum.

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Vincenza

5 months 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!

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Quentin

5 months 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.

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Arlene

5 months 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?

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Katheryn

5 months 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.

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Sue

5 months 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.

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Noble

5 months 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.

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Glory

5 months 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.

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