Question

give the equation for each graph.

Explanation:

Step1: Identify horizontal - line equation

The general form of a horizontal line is $y = k$, where $k$ is the $y$ - coordinate of all points on the line. The first graph is a horizontal line passing through $y=-2$. So the equation is $y = - 2$.

Step2: Identify vertical - line equation

The general form of a vertical line is $x = h$, where $h$ is the $x$ - coordinate of all points on the line. The second graph is a vertical line passing through $x = 3$. So the equation is $x=3$.

Answer:

$y=-2$
$x = 3$