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October 17, 2025, 02:40:21 am
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Author Topic: Maximal domain  (Read 22420 times)  Share 

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DNAngel

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Maximal domain
« on: March 15, 2011, 08:08:27 pm »
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A question for clarification, what exactly are questions asking for when the maximal domain must be found?
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iNerd

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Re: Maximal domain
« Reply #1 on: March 15, 2011, 08:09:32 pm »
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The maximum values 'x' can take.

The maximal domain for y = x^2 is R where R denotes all real numbers.

(I think...wait for clarification)
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Greatness

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Re: Maximal domain
« Reply #2 on: March 15, 2011, 08:15:56 pm »
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Quote from: ATAR on March 15, 2011, 08:09:32 pm
The maximum values 'x' can take.

The maximal domain for y = x^2 is R where R denotes all real numbers.

(I think...wait for clarification)
Yes this. Another example:
y = sqroot(x-3) the implied/maximal domain is [3,infinity)
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luken93

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Re: Maximal domain
« Reply #3 on: March 15, 2011, 08:25:17 pm »
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Basically, any value that x can take that won't make the function undefined.

As in swarley's example, if you went lower than 3, the function would be undefined (becuase you can't have a negative square root), hence the maximum ALLOWABLE values x can take are anything from and including 3 to infinity.
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