Question

write the equation of the line.

Explanation:

Step1: Identify line type

The line is horizontal, so its equation has the form $y = k$, where $k$ is a constant (the y-coordinate of all points on the line).

Step2: Find the constant value

The horizontal line passes through $y = -40$ (all points on the line have a y-value of -40, regardless of x-value).

Answer:

$y = -40$