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August 28th, 2018, 09:54 PM   #1
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Domain of function

Find the domain of the function thanks!!
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August 28th, 2018, 10:26 PM   #2
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Math Focus: Yet to find out.
No thanks!!

Share your working on the problem and someone may be more inclined to help.
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August 28th, 2018, 10:30 PM   #3
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Work in progress

Just not sure if my answer is right or not
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August 28th, 2018, 10:52 PM   #4
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Math Focus: Yet to find out.
I'm not sure what you're final answer is. But try plug in a couple of numbers to test. What do you get when you put x = -10? What about x = -5/2?
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August 29th, 2018, 08:03 AM   #5
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Good idea. I'll try that
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August 29th, 2018, 11:18 AM   #6
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Quote:
Originally Posted by vnlhmg View Post
Good idea. I'll try that
The function $f(x) = \sqrt[4]{x}$ is undefined on the real numbers if $x<0$

So simply find

$\{x:2x+5 \geq 0\}$
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