#### Answer

Domain= (negative infinity, infinity)
Range= {4}

#### Work Step by Step

This function is a horizontal line going through the y-axis at point 4. The function stretches on indefinitely to the left and to the right. This means our domain is infinite in both directions.
Domain=(negative infinity, infinity)
The function is a horizontal line. We can not use interval notation because there is only one number. We instead use set builder notations.
Range={4}