Question

Domain and range of -√x^2-9​

Answer 1

Answer:

xfixotxpxylxlgzkzkgfzkgxkgxkgz

Answer 2

Answer:

As written

XXXX

Since  

x

2

=

9

→

x

=

±

3

XXXX

XXXX

the Domain is  

{

−

3

,

+

3

}

XXXX

and since  

y

=

x

XXXX

XXXX

the Range is also  

{

−

3

,

+

3

}

Probable Intended equation:  

y

=

x

2

−

9

XXXX

In this case the equation is defined for all Real values of  

x

,

XXXX

XXXX

so the Domain is  

x

ε

R

XXXX

the minimum value for  

y

is  

y

=

−

9

,

XXXX

XXXX

so the Range is  

y

ε

[

−

9

,

+

∞

)