IFoA Exam IFoA_CAA_M0 Topic 6 Question 74 Discussion

Actual exam question for IFoA's IFoA_CAA_M0 exam

Question #: 74
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 Corinne at Sep 12, 2024, 09:28 PM

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Glendora

13 days ago

Wait, what? A is a maximum and B is a point of inflexion? Are you sure about that? I thought B was supposed to be a minimum. *scratches head*

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Quentin

18 days ago

Hmm, let's see. The stationary points are A(-1,13) and B(4/3,8/27). Okay, got it! A is a maximum and B is a point of inflexion. Easy peasy!

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Hobert

2 days ago

Great job! It's important to identify the nature of stationary points in a function.

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Andra

3 days ago

That's correct! A is indeed a maximum and B is a point of inflexion.

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Allene

5 days ago

A is a maximumB is a point of inflexion

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Matt

25 days ago

I'm not sure about A being a maximum. I think A might be a point of inflexion.

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Cecil

26 days ago

I agree with Nicholle. A seems like a maximum and B a minimum.

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Nicholle

27 days ago

I think A is a maximum and B is a minimum.

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