Question

find the equation of lines passing through the point (1,2) (1,-2)​

Answer 1

Step-by-step explanation:

y - y1 = m(x - x1)

m = (y2 - y1)/(x2 - x1)

m = (-2 - 2)/1 - 1 = ∞

therefore the line is parallel to y axis and its equation is x = 1