Question

() =

4
/−5

and ℎ() =

+5
/+3

, what is the domain of (ℎ)()?​

Answer 1

Answer:

The domain includes all values of x for which h(x) exists.

For rational functions (such as this one), the domain doesn't exist for values of x which cause division by 0. So, let's determine which values of x cause the denominator to equal 0:

x+1=0.

x=−1 .

Then, the domain is all values of x excluding x=−1.