Find range of exponent

The name of the pictureThe name of the pictureThe name of the pictureClash Royale CLAN TAG#URR8PPP











up vote
2
down vote

favorite












I have the following function I need to find the range for and I'm not sure if I'm on the right direction.



$f(x,y) = e^-x^2-(y-1)^2$



$x$ & $y$ are real-numbers.



I'm thinking that the range is "all real values for $y$ that are $> 0$."



Is this right?










share|cite|improve this question























  • I think you need to find the range of f(x,y), not y. You need to think about what all values f(x,y) can take for any real x, y
    – Neo
    39 mins ago














up vote
2
down vote

favorite












I have the following function I need to find the range for and I'm not sure if I'm on the right direction.



$f(x,y) = e^-x^2-(y-1)^2$



$x$ & $y$ are real-numbers.



I'm thinking that the range is "all real values for $y$ that are $> 0$."



Is this right?










share|cite|improve this question























  • I think you need to find the range of f(x,y), not y. You need to think about what all values f(x,y) can take for any real x, y
    – Neo
    39 mins ago












up vote
2
down vote

favorite









up vote
2
down vote

favorite











I have the following function I need to find the range for and I'm not sure if I'm on the right direction.



$f(x,y) = e^-x^2-(y-1)^2$



$x$ & $y$ are real-numbers.



I'm thinking that the range is "all real values for $y$ that are $> 0$."



Is this right?










share|cite|improve this question















I have the following function I need to find the range for and I'm not sure if I'm on the right direction.



$f(x,y) = e^-x^2-(y-1)^2$



$x$ & $y$ are real-numbers.



I'm thinking that the range is "all real values for $y$ that are $> 0$."



Is this right?







algebra-precalculus functions exponential-function






share|cite|improve this question















share|cite|improve this question













share|cite|improve this question




share|cite|improve this question








edited 22 mins ago









MRobinson

1,374218




1,374218










asked 43 mins ago









Hews

776




776











  • I think you need to find the range of f(x,y), not y. You need to think about what all values f(x,y) can take for any real x, y
    – Neo
    39 mins ago
















  • I think you need to find the range of f(x,y), not y. You need to think about what all values f(x,y) can take for any real x, y
    – Neo
    39 mins ago















I think you need to find the range of f(x,y), not y. You need to think about what all values f(x,y) can take for any real x, y
– Neo
39 mins ago




I think you need to find the range of f(x,y), not y. You need to think about what all values f(x,y) can take for any real x, y
– Neo
39 mins ago










1 Answer
1






active

oldest

votes

















up vote
3
down vote



accepted










Since $-x^2-(y-1)^2leq0$ and $g(x)=e^x$ increases, we obtain:
$$0<e^-x^2-(y-1)^2leq e^0=1.$$






share|cite|improve this answer






















  • Why does it need to be less than 1 though? - Thanks for the edit!
    – Hews
    37 mins ago







  • 1




    @Hews I added something. See now.
    – Michael Rozenberg
    34 mins ago










Your Answer




StackExchange.ifUsing("editor", function ()
return StackExchange.using("mathjaxEditing", function ()
StackExchange.MarkdownEditor.creationCallbacks.add(function (editor, postfix)
StackExchange.mathjaxEditing.prepareWmdForMathJax(editor, postfix, [["$", "$"], ["\\(","\\)"]]);
);
);
, "mathjax-editing");

StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "69"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);

else
createEditor();

);

function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
convertImagesToLinks: true,
noModals: false,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
noCode: true, onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);



);













 

draft saved


draft discarded


















StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f2951134%2ffind-range-of-exponent%23new-answer', 'question_page');

);

Post as a guest






























1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes








up vote
3
down vote



accepted










Since $-x^2-(y-1)^2leq0$ and $g(x)=e^x$ increases, we obtain:
$$0<e^-x^2-(y-1)^2leq e^0=1.$$






share|cite|improve this answer






















  • Why does it need to be less than 1 though? - Thanks for the edit!
    – Hews
    37 mins ago







  • 1




    @Hews I added something. See now.
    – Michael Rozenberg
    34 mins ago














up vote
3
down vote



accepted










Since $-x^2-(y-1)^2leq0$ and $g(x)=e^x$ increases, we obtain:
$$0<e^-x^2-(y-1)^2leq e^0=1.$$






share|cite|improve this answer






















  • Why does it need to be less than 1 though? - Thanks for the edit!
    – Hews
    37 mins ago







  • 1




    @Hews I added something. See now.
    – Michael Rozenberg
    34 mins ago












up vote
3
down vote



accepted







up vote
3
down vote



accepted






Since $-x^2-(y-1)^2leq0$ and $g(x)=e^x$ increases, we obtain:
$$0<e^-x^2-(y-1)^2leq e^0=1.$$






share|cite|improve this answer














Since $-x^2-(y-1)^2leq0$ and $g(x)=e^x$ increases, we obtain:
$$0<e^-x^2-(y-1)^2leq e^0=1.$$







share|cite|improve this answer














share|cite|improve this answer



share|cite|improve this answer








edited 35 mins ago

























answered 41 mins ago









Michael Rozenberg

90.8k1584181




90.8k1584181











  • Why does it need to be less than 1 though? - Thanks for the edit!
    – Hews
    37 mins ago







  • 1




    @Hews I added something. See now.
    – Michael Rozenberg
    34 mins ago
















  • Why does it need to be less than 1 though? - Thanks for the edit!
    – Hews
    37 mins ago







  • 1




    @Hews I added something. See now.
    – Michael Rozenberg
    34 mins ago















Why does it need to be less than 1 though? - Thanks for the edit!
– Hews
37 mins ago





Why does it need to be less than 1 though? - Thanks for the edit!
– Hews
37 mins ago





1




1




@Hews I added something. See now.
– Michael Rozenberg
34 mins ago




@Hews I added something. See now.
– Michael Rozenberg
34 mins ago

















 

draft saved


draft discarded















































 


draft saved


draft discarded














StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f2951134%2ffind-range-of-exponent%23new-answer', 'question_page');

);

Post as a guest













































































Comments

Popular posts from this blog

What does second last employer means? [closed]

List of Gilmore Girls characters

Confectionery