Algebra and statistics

Question

Find the equation of vertical line passing through the point (2, -1)

Answer 1

x=2 is the vertical line through the point (2,-1)

to be a vertical line the equation is: x= a constant

for a vertical line to go through (2,-1) x must equal the x coordinate of the point (2,-1)

so x= 2

it might help to graph the line and plot the point