Question

write the equations for horizontal and vertical lines. try another one. whats the equation of this line? (graph of a coordinate plane with a vertical line, input box and keypad below)

Explanation:

Step1: Identify line type

The line is vertical, so its equation has the form $x = a$, where $a$ is the x-intercept.

Step2: Find x-intercept

The vertical line crosses the x-axis at $x=3$.

Answer:

$x=3$