The equations 2x + 4y = 8 and 8x + ay = 32 represent the same straight line if a =
A
2
B
16
C
9
D
None of these
Correct Option:
B
Explanation
For the equations to represent the same straight line, their coefficients must be proportional. Multiplying 2x + 4y = 8 by 4 gives 8x + 16y = 32. Comparing this with 8x + ay = 32 gives a = 16.
