pls help | Mathematics | Page 1

opaque cloakBOT Oct 3, 2025, 1:42 AM

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coral locust Oct 3, 2025, 2:12 AM

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What have you tried?

red hedge Oct 3, 2025, 2:29 AM

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coral locust What have you tried?

everything, i dont understand

coral locust Oct 3, 2025, 2:30 AM

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red hedge everything, i dont understand

Okay, do you understand what a domain is?

red hedge Oct 3, 2025, 2:32 AM

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coral locust Okay, do you understand what a domain is?

no

coral locust Oct 3, 2025, 2:32 AM

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red hedge no

Okay, so.

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The short version is that the domain is the set of inputs over which the function is defined.

red hedge Oct 3, 2025, 2:36 AM

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ok

coral locust Oct 3, 2025, 2:39 AM

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red hedge ok

Now, implicitly when we're talking about "the domain" of some kind of radical function, one involving a square root, we usually want the codomain, the set where the outputs of the function live, to be the real numbers.

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So what Question 1 is asking is, for what values of x is sqrt(x + 4)/sqrt(x - 1) a real number?

red hedge Oct 3, 2025, 2:42 AM

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ok

coral locust Oct 3, 2025, 2:43 AM

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So, does that... help?

red hedge Oct 3, 2025, 2:44 AM

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i'll try to do them again and can you let me know if they're correct?

coral locust Oct 3, 2025, 2:46 AM

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red hedge i'll try to do them again and can you let me know if they're correct?

Well, let's make sure your approach is correct.

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The goal isn't just to get the right answer, the goal is to understand the question.

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So what have you understood from what I've said?

red hedge Oct 3, 2025, 3:03 AM

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the question is asking for all the possible input values

coral locust Oct 3, 2025, 3:04 AM

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red hedge the question is asking for all the possible input values

What makes an input value "possible"?

red hedge Oct 3, 2025, 3:04 AM

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is the answer (3, inf) ?

coral locust Oct 3, 2025, 3:04 AM

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red hedge is the answer (3, inf) ?

Show your work.

red hedge Oct 3, 2025, 3:10 AM

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nevermind i was wrong..

coral locust Oct 3, 2025, 3:14 AM

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coral locust What makes an input value "possible"?

@red hedge Please answer this question.

red hedge Oct 3, 2025, 3:29 AM

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i no longer need your service, thank you

#pls help