# Help! C2 textbook maths problem!

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Hi I need some help on this question. This is an investigation problem in Differentiation chapter on C2 textbook.

A population of birds on an island, P, is a function of the number of predators,x.

The population follows the equation P= x^3 -12x^2 -60x +850 where x >0

Sketch the graph of this function and discuss the shape of the curve and its behaviour as x tends to be infinity.

How can you explain this.

Thanks a lot!!!

A population of birds on an island, P, is a function of the number of predators,x.

The population follows the equation P= x^3 -12x^2 -60x +850 where x >0

Sketch the graph of this function and discuss the shape of the curve and its behaviour as x tends to be infinity.

How can you explain this.

Thanks a lot!!!

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(Original post by

Hi I need some help on this question. This is an investigation problem in Differentiation chapter on C2 textbook.

A population of birds on an island, P, is a function of the number of predators,x.

The population follows the equation P= x^3 -12x^2 -60x +850 where x >0

Sketch the graph of this function and discuss the shape of the curve and its behaviour as x tends to be infinity.

How can you explain this.

Thanks a lot!!!

**pepperzealot**)Hi I need some help on this question. This is an investigation problem in Differentiation chapter on C2 textbook.

A population of birds on an island, P, is a function of the number of predators,x.

The population follows the equation P= x^3 -12x^2 -60x +850 where x >0

Sketch the graph of this function and discuss the shape of the curve and its behaviour as x tends to be infinity.

How can you explain this.

Thanks a lot!!!

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**pepperzealot**)

Hi I need some help on this question. This is an investigation problem in Differentiation chapter on C2 textbook.

A population of birds on an island, P, is a function of the number of predators,x.

The population follows the equation P= x^3 -12x^2 -60x +850 where x >0

Sketch the graph of this function and discuss the shape of the curve and its behaviour as x tends to be infinity.

How can you explain this.

Thanks a lot!!!

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(Original post by

Well it's a cubic graph, so you just sketch it how you normally would, except in this case you need t pay attention to the domain.

**lerjj**)Well it's a cubic graph, so you just sketch it how you normally would, except in this case you need t pay attention to the domain.

But I am confused about what is the behaviour as x tends to infinity? and how to explain it? I think it is just a cubic graph why does the question emphasize “infinity”.

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(Original post by

So, where are you having difficulties?

**TenOfThem**)So, where are you having difficulties?

I am confused about what is the behaviour as x tends to infinity? and how to explain it? I think it is just a cubic graph why does the question emphasize “infinity”.

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(Original post by

Thanks.

But I am confused about what is the behaviour as x tends to infinity? and how to explain it? I think it is just a cubic graph why does the question emphasize “infinity”.

**pepperzealot**)Thanks.

But I am confused about what is the behaviour as x tends to infinity? and how to explain it? I think it is just a cubic graph why does the question emphasize “infinity”.

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(Original post by

What happens to the graph as x tends to infinity?

**TenOfThem**)What happens to the graph as x tends to infinity?

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(Original post by

What happens to the graph as x tends to infinity?

**TenOfThem**)What happens to the graph as x tends to infinity?

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(Original post by

and tends to ...

**TenOfThem**)and tends to ...

P becomes bigger and tends to be infinity??

Thank you very much!! !!!!!

So for the explanation

can I just say there is no turning point after x=10, hence the graph will increase all the time?

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#13

(Original post by

oooo

P becomes bigger and tends to be infinity??

Thank you very much!! !!!!!

So for the explanation

can I just say there is no turning point after x=10, hence the graph will increase all the time?

**pepperzealot**)oooo

P becomes bigger and tends to be infinity??

Thank you very much!! !!!!!

So for the explanation

can I just say there is no turning point after x=10, hence the graph will increase all the time?

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(Original post by

I would describe the turning point at x=10 and the ^^

**TenOfThem**)I would describe the turning point at x=10 and the ^^

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