In a function like f(x,y)=x^2+y, are x and y independent of each other and are we allowed to pick values for each deliberately?

omgespit9q 2022-10-14 Answered
In a function like f ( x , y ) = x 2 + y, are x and y independent of each other and are we allowed to pick values for each deliberately?
Say for 1 for x and 99 for y?
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Answers (1)

Finnegan Stone
Answered 2022-10-15 Author has 11 answers
In general
f ( x , y ) : D R 2 R
is defined in a subset D of R 2 that is the real plane.
In your case
f ( x , y ) = x 2 + y
is defined for each value of ( x , y ) thus D R 2 .
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