Question 208498
which system is inconsistent?

A) y=0.5x
   x-2y=1

B) 2x-y=8
   4x+y=5

C) x+y=0
   2x=y

D) y= -1
   x=2
-----------------
Ans: A because the equations have the same slope and different intercepts.
========================================
Cheers,
Stan H.