Question

write an equation for this line.

Explanation:

Step1: Identify line type

The line is vertical, so it has an undefined slope. Vertical lines have equations of the form \( x = a \), where \( a \) is the x - coordinate of any point on the line.

Step2: Find x - coordinate

Looking at the graph, the vertical line passes through \( x = 3 \) (since it's 3 units to the right of the origin on the x - axis). So the equation of the line is \( x = 3 \).

Answer:

\( x = 3 \)