Question

Determine the domain of the following graph:

Answer 1

x is greater than or equal to -11 and less than 10.

Explanation:

On the left it is a solid filled in dot which includes the -11 and on the right the dot is open so 10 is not included.

Answer 2

Answer and explanation:

The domain would be [-11,10). -11 has a bracket because there is a closed circle for -11; while 10 only has a parenthesis because there is an open circle. You can use every number between -11 and 10, including -11 (because of the closed circle).