we know that
Domain:
Domain is all possible values of x for which any function is defined
For finding domain from any graph , firstly we will find smallest x-value and then largest x-value of curve
and that would be domain
Here , we have
smallest x-value is -3
but there is a hole at x=-3
so, function is not defined at x=-3
largest x-value is 1
so, domain would be
.................Answer