Chapter 3.7, Problem 4WE

To determine

To graph: The given inequality.

Explanation of Solution

Given information: Inequality is $y+2\ge 0$ .

Graph:

Transforming the inequality into an equivalent inequality with $y$ alone on one side,

  $y\ge -2$ .

Graphing the associated equation $y=-2$ as a solid line, it is a horizontal line, a point $P(x,y)$ belongs to the graph of the inequality if and only if the $y-coordinate$ of $P$ is greater than or equal to $-2$ (i.e. if and only if $P$ is on or to the upper side of the boundary line $y=-2$ ).

  

Thus, the inequality is graphed.