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How do you find the domain and range for
a) sqrt ( (1/x)+1 )
b) 1/ sqrt (x+1) ?
 one year ago
 one year ago
How do you find the domain and range for a) sqrt ( (1/x)+1 ) b) 1/ sqrt (x+1) ?
 one year ago
 one year ago

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SNSDYoonaBest ResponseYou've already chosen the best response.1
for (a) x cannot be 0 if not its undefined
 one year ago

SNSDYoonaBest ResponseYou've already chosen the best response.1
range is y cannot be 1
 one year ago

SNSDYoonaBest ResponseYou've already chosen the best response.1
(b) is x cannot be 1 if not denominator is 0 n 1/0 is undefined
 one year ago

SNSDYoonaBest ResponseYou've already chosen the best response.1
range is y cannot be 0
 one year ago

DenebelBest ResponseYou've already chosen the best response.0
Can you show me how did you get that?
 one year ago

DenebelBest ResponseYou've already chosen the best response.0
for a) I got (1/x) + 1 >= 0 ? Did I set it up correctly?
 one year ago

TheViperBest ResponseYou've already chosen the best response.1
http://cs.gmu.edu/cne/modules/dau/calculus/domains_ranges/dom2_frm.html
 one year ago

SNSDYoonaBest 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
 one year ago

panlac01Best ResponseYou've already chosen the best response.0
the denominator cannot be zero and function is only 1 to 1
 one year ago

DenebelBest ResponseYou've already chosen the best response.0
Do I need to think about the negatives as well?
 one year ago

SNSDYoonaBest ResponseYou've already chosen the best response.1
yes.. for example 1/(x+1).. ur x cannot be negative one cause 1 +1 = 0
 one year ago

DenebelBest ResponseYou've already chosen the best response.0
For a) if the denominator was negative, it would make the equation inside the sqrt negative
 one year ago

SNSDYoonaBest ResponseYou've already chosen the best response.1
umm brother... its 1 OVER x...
 one year ago

SNSDYoonaBest ResponseYou've already chosen the best response.1
even if x is 100000000000 its 1 OVER it.. thats like 0.00000000000 bla bla bla
 one year ago

SNSDYoonaBest 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
 one year ago
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