Question

Find the domain and range of the function f(x)=1- x-3

Answer 1

Answer:

Step-by-step explanation:

The range is

y

∈

(

−

∞

,

0

)

∪

(

0

,

+

∞

)

Explanation:

Let

y

=

1

x

+

3

⇒

,

y

(

x

+

3

)

=

1

⇒

,

y

x

+

3

y

=

1

⇒

,

y

x

=

1

−

3

y

⇒

,

x

=

1

−

3

y

y

The denominator

≠

0

y

≠

0

The range is

y

∈

(

−

∞

,

0

)

∪

(

0

,

+

∞

)

graph{1/(x+3) [-10, 10, -5, 5]}