What is the equation of the line that passes through (x, -2) and (7, 1) with an undefined slope?

1 Answer
Jim G.
May 8, 2018

#x=7#

Explanation:

#"a line with an undefined slope indicates a vertical line,"#
#"parallel to the y-axis and passing through all points in "#
#"the plane with the same x-coordinate"#

#"for this reason it's equation is"#

#•color(white)(x)x=c#

#"where c is the value of the x-coordinate the line passes"#
#"through"#

#"here the line passes through "(color(red)(7),1)#

#rArr"equation is "x=7#

#"and "(x,-2)=(7,-2)#
graph{y-1000x+7000=0 [-10, 10, -5, 5]}

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