Find range of exponent
Clash 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?
algebra-precalculus functions exponential-function
add a comment |Â
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?
algebra-precalculus functions exponential-function
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
add a comment |Â
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?
algebra-precalculus functions exponential-function
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
algebra-precalculus functions exponential-function
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
add a comment |Â
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
add a comment |Â
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:
$$0<e^-x^2-(y-1)^2leq e^0=1.$$
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
add a comment |Â
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:
$$0<e^-x^2-(y-1)^2leq e^0=1.$$
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
add a comment |Â
up vote
3
down vote
accepted
Since $-x^2-(y-1)^2leq0$ and $g(x)=e^x$ increases, we obtain:
$$0<e^-x^2-(y-1)^2leq e^0=1.$$
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
add a comment |Â
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:
$$0<e^-x^2-(y-1)^2leq e^0=1.$$
Since $-x^2-(y-1)^2leq0$ and $g(x)=e^x$ increases, we obtain:
$$0<e^-x^2-(y-1)^2leq e^0=1.$$
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
add a comment |Â
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
add a comment |Â
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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