Find the equation of the line passing through the point (2, 4) and perpendicular to the x - axis.
Given: The line is perpendicular to x - axis and passes through (2,4)
The equation of the line perpendicular to the x - axis (y = 0) can be represented as x = c, where c is a real constant.
Now, this line passes through (2,4).
c = 2
The required equation is x = 2