Question

The pair of equations x = a and y = b graphically represents the lines which are
(a) parallel (b) intersecting at (a, b)
(c) coincident (d) intersecting at (b, a)

Answer 1

Line x = a is parallel to y axis and x coordinate of this line will never change.

line y = b is parallel to x axis and y coordinate of this line will never change.

so they must intersect at (a,b)