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Denebel
Group Title
How do you find the domain and range for
a) sqrt ( (1/x)+1 )
b) 1/ sqrt (x+1) ?
 2 years ago
 2 years ago
Denebel Group Title
How do you find the domain and range for a) sqrt ( (1/x)+1 ) b) 1/ sqrt (x+1) ?
 2 years ago
 2 years ago

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SNSDYoona Group TitleBest ResponseYou've already chosen the best response.1
for (a) x cannot be 0 if not its undefined
 2 years ago

SNSDYoona Group TitleBest ResponseYou've already chosen the best response.1
range is y cannot be 1
 2 years ago

SNSDYoona Group TitleBest ResponseYou've already chosen the best response.1
(b) is x cannot be 1 if not denominator is 0 n 1/0 is undefined
 2 years ago

SNSDYoona Group TitleBest ResponseYou've already chosen the best response.1
range is y cannot be 0
 2 years ago

Denebel Group TitleBest ResponseYou've already chosen the best response.0
Can you show me how did you get that?
 2 years ago

Denebel Group TitleBest ResponseYou've already chosen the best response.0
for a) I got (1/x) + 1 >= 0 ? Did I set it up correctly?
 2 years ago

TheViper Group TitleBest ResponseYou've already chosen the best response.1
http://cs.gmu.edu/cne/modules/dau/calculus/domains_ranges/dom2_frm.html
 2 years ago

SNSDYoona Group TitleBest ResponseYou've already chosen the best response.1
Umm u dont even actually have to set up.. just apply this few rules (1) anything divided by 0 ( a fraction) is undefined so for (a) square root of (1/x + 1) u know that 1 over 0 is undefined when x = 0 so ur domain would be x cannot be equal to 0.. as simple as that
 2 years ago

panlac01 Group TitleBest ResponseYou've already chosen the best response.0
the denominator cannot be zero and function is only 1 to 1
 2 years ago

Denebel Group TitleBest ResponseYou've already chosen the best response.0
Do I need to think about the negatives as well?
 2 years ago

SNSDYoona Group TitleBest ResponseYou've already chosen the best response.1
yes.. for example 1/(x+1).. ur x cannot be negative one cause 1 +1 = 0
 2 years ago

Denebel Group TitleBest ResponseYou've already chosen the best response.0
For a) if the denominator was negative, it would make the equation inside the sqrt negative
 2 years ago

SNSDYoona Group TitleBest ResponseYou've already chosen the best response.1
umm brother... its 1 OVER x...
 2 years ago

Denebel Group TitleBest ResponseYou've already chosen the best response.0
2, 3, etc...
 2 years ago

SNSDYoona Group TitleBest ResponseYou've already chosen the best response.1
even if x is 100000000000 its 1 OVER it.. thats like 0.00000000000 bla bla bla
 2 years ago

SNSDYoona Group TitleBest ResponseYou've already chosen the best response.1
it doesnt matter a fraction is always smaller than a whole number when the numerator is smaller than the denominator
 2 years ago
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