Question

look at this graph: write the equation of the line.

Explanation:

Step1: Identify line - type

The line is horizontal.

Step2: Recall horizontal - line equation

The equation of a horizontal line is $y = k$, where $k$ is the $y$ - coordinate of any point on the line.

Step3: Determine the $y$ - value

The line passes through the point where $y = 2$. So the equation of the line is $y=2$.

Answer:

$y = 2$