Question

The pair of equations `x = a` and `y = b` graphically represents lines which are
A. parallel
B. intersecting at (b, a)
C. coincident
D. intersecting at (a, b)

Answer 1

Correct Answer - D
By graphically in every condition, if `a, b gt 0, a, b lt 0, a gt0, b lt 0, a lt 0, b gt 0` but ` a = b !=0`.
The pair of equations x = a and y = b graphically represents lines which are intersecting at (a, b).
If `a, b gt 0`

Similarly, in all cases two lines intersect at (a, b).