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I just solved this problem before under this link
https://www.algebra.com/algebra/college/linear/Linear_Algebra.faq.question.1136196.html
https://www.algebra.com/algebra/college/linear/Linear_Algebra.faq.question.1136196.html
For your convenience, I copy and paste that solution here AGAIN
Line x-2 = 0 is vertical line x= 2.
Any parallel to it is a vertical line, too, with the equation x = c, where "c" is a constant term.
Since the line x= c must go through the point (1,-2), its equation must be
x = 1. ANSWER