What is the range of the function #x^2 + y^2 = 9#?

1 Answer
Jan 4, 2018

Answer:

The domain is #[-3,3]# and range too is #[-3,3]#.

Explanation:

While domain depends on values that #x# can take in #f(x,y)=0#, range depends on values #y# can take in #f(x,y)#.

In #x^2+y^2=9#, as #x^2# and #y^2# both are positive and hence cannot take values beyond #9#.=,

the domain is #[-3,3]# and range too is #[-3,3]#.