$\text { Find an equation of the line that passes through the point } ( 7,2 ) \text { and has the slope } m$ that is undefined.
A) $y = 7$
B) $x = 7$
C) $y = 2$
D) $x = 2$
E) $y = 7 x$

Question

$\text { Find an equation of the line that passes through the point } ( 7,2 ) \text { and has the slope } m$ that is undefined. 
A) $y = 7$
B) $x = 7$
C) $y = 2$
D) $x = 2$
E) $y = 7 x$

Quizplus · Accepted Answer

When a line has undefined slope, it means it is a vertical line. A vertical line passes through all points that share the same $x$-coordinate. Therefore, the equation of the line passing through $(7,2)$ and having undefined slope must be $x=7$.

Find an equation of the line that passes through the point (7,2) and has the slope m\text { Find an equation of the line that passes through the point } ( 7,2 ) \text { and has the slope } m Find an equation of the line that passes through the point (7,2) and has the slope m

$\text { Find an equation of the line that passes through the point } ( 7,2 ) \text { and has the slope } m$