Question

write the equations for horizontal and vertical lines. try one more. what’s the equation of this 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-value of all points on the line).

Step2: Determine the constant $k$

The line passes through all points where the y-coordinate is $-3$.

Answer:

$y = -3$