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October 22, 2025, 12:28:59 am
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Author Topic: Huh.. a Question...  (Read 602 times)  Share 

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ReganM

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Huh.. a Question...
« on: November 08, 2010, 10:09:27 am »
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Okay, I was looking through my answers to VCAA MM Cas 2009, and for Extended Response Q1 the question is:

State the interval for which the graph of f is strictly decreasing.

My answer was (9, infinity), the itute answers say [9,infitinity).

Is itute right? I thought that the gradient doesn't exist at a turning point, this it isn't decreasing at the turning point..?
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Graduated in 2011.

Bachelor of Science at Melbourne. Biological Science subjects.

Whatlol

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Re: Huh.. a Question...
« Reply #1 on: November 08, 2010, 10:10:06 am »
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If it says stricly increasing/decreasing you have to include the turning point.
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lachymm

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Re: Huh.. a Question...
« Reply #2 on: November 08, 2010, 10:41:31 am »
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Quote from: Whatlol on November 08, 2010, 10:10:06 am
If it says stricly increasing/decreasing you have to include the turning point.

Correct
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2009 Further Mathematics [41]

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Whatlol

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Re: Huh.. a Question...
« Reply #3 on: November 08, 2010, 10:48:41 am »
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good luck guys.
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