What is the domain of the function graphed below?

Sadie computes the perimeter of a rectangle by adding the length, l, and width, w, and doubling this sum. eric computes the perimeter of a rectangle by doubling the length, l, doubling the width, w, and adding the doubled amounts. write an equation for sadie’s way of calculating the

Ineed if you could explain and give me the answer you! this needs done

Which inequality has a dashed boundary line when graphed ?