# How do you find a standard form equation for the line with x-intercept (–2, 0) and undefined slope?

$x + 2 = 0.$
Undefined slope means the line must be vertical, i.e., parallel to Y-Axis. and it passes thro. a pt. $\left(- 2 , 0\right)$
Now, the eqn. of a vertical line thro. pt. $\left(a , b\right)$ is $x = a .$
In view of above, the reqd. eqn. is $x = - 2 ,$ or, $x = 2 = 0.$