Find an equation of the line, and write it in (a) slope-intercept form if possible and (b) standard form.
-Through $(9,-8)$; vertical
A) (a) $y=9$
(b) $y=9$
B) (a) $y=-8$
(b) $y= -8$
C) (a) not possible
(b) $x=9$
D) (a) not possible
(b) $x=-8$

Question

Quizplus · Accepted Answer

A vertical line cannot be expressed in slope-intercept form because its slope is undefined. The equation of a vertical line passing through (9, -8) is $x=9$, which is in standard form.

Find an Equation of the Line, and Write It in (A)