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anonymous
 one year ago
Identify the domain and range and sketch the graph of the function
y=sqrtx
anonymous
 one year ago
Identify the domain and range and sketch the graph of the function y=sqrtx

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0you can't take the square root of a negative number , solve \[x\geq 0\] in one step to get the domain

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0same domainfor \(y=\sqrt{x}\)makes no difference

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0as for the range, the square root is greater than or equal to zero, so minus the square root will be less than or equal to zero

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Ok so the domian would be (infinity, infinity)?

misty1212
 one year ago
Best ResponseYou've already chosen the best response.2do you know how to solve \[x\geq 0\] for \(x\)?

misty1212
 one year ago
Best ResponseYou've already chosen the best response.2if not, that is fine, i will show you

misty1212
 one year ago
Best ResponseYou've already chosen the best response.2ok change the sign, and flip the inequality

misty1212
 one year ago
Best ResponseYou've already chosen the best response.2the math teachers call it "multiply by \(1\)" or sommat, but you just make it positive and change greater than or equal to to less that or equal to

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0what @misty1212 said

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0don't you divide by 1 and flip the sign?

misty1212
 one year ago
Best ResponseYou've already chosen the best response.2lol multiply by 1, divide by 1, potato potahto

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok so would the domain be 1?

misty1212
 one year ago
Best ResponseYou've already chosen the best response.2ooooh kay lets go slow

misty1212
 one year ago
Best ResponseYou've already chosen the best response.2the domain is an interval right? not a number

misty1212
 one year ago
Best ResponseYou've already chosen the best response.2the question is, what interval is it now we know that you cannot take the square root of a negative number, so the input has to be positive right?

misty1212
 one year ago
Best ResponseYou've already chosen the best response.2the input in this case is \(x\) in english we would say that \(x\) must be greater than or equal to zero in math write \[x\geq 0\]

misty1212
 one year ago
Best ResponseYou've already chosen the best response.2to solve that for \(x\) change the sign so that it is \(x\) instead of \(x\) and change the inequality as well

misty1212
 one year ago
Best ResponseYou've already chosen the best response.2i.e \[x\geq 0\iff x\leq 0\] and that is your domain

misty1212
 one year ago
Best ResponseYou've already chosen the best response.2if you want to write it as an interval that works too, call it \[\huge (\infty, 0]\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Ok so what would the range be?

misty1212
 one year ago
Best ResponseYou've already chosen the best response.2ok again we go slow the range is all possible outputs the square root is always greater than or equal to zero you have a minus sign in front, so that means the range will be all numbers less than or equal to zero

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Ok so how would I graph it?

misty1212
 one year ago
Best ResponseYou've already chosen the best response.2if you want to write it as an interval, write it the same as the domain in this case they are the same

misty1212
 one year ago
Best ResponseYou've already chosen the best response.2how to you graph \(y=\sqrt{x}\)?

misty1212
 one year ago
Best ResponseYou've already chosen the best response.2is that the question?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Well I have to sketch the graph of the function

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0do you know what \(y=\sqrt{x}\) looks like?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0hmm then you can't really do it maybe look it up

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0http://www.wolframalpha.com/input/?i=plot+y%3D%E2%88%92%E2%88%9Ax%3F

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok be very careful here

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0wolfram has given you too much information

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0where it says "complex valued plot" change it to "real valued plot"

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1440985596594:dwyou should see something like that
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