Question

find domain and range of two variable function
1) f(x,y)=y-x
2) f(x,y)=square root of y-x
3) f(x,y)=4xsquare+9ysquare
4) f(x,y)=x2-y2
5) f(x,y)= square rooot of 9-x2-y2
6) f(x,y) =ln(x2+y2)
7) f(x,y)=1/square root of 16-x2-y2

Answer 1

we helped you with this the other day, which parts are you not understanding? do you remember how to define domain and range?

Answer 2

yup

Answer 3

so are there any restrictions on 1)?

Answer 4

hey guy are you joking,or...

Answer 5

not joking