If the equations 5x + ky = 3 and kx + 5y = 3 represent the same line, then k =
A
1
B
5
C
3
D
None of these
Correct Option:
B
Explanation
For the equations 5x + ky = 3 and kx + 5y = 3 to represent the same line, corresponding coefficients must be proportional: 5/k = k/5 = 3/3 = 1. Hence k = 5. With k = 5, both equations become 5x + 5y = 3.
