tradinggenius wrote:
Is xy > 0 ?
1) x - y > -2
2) x - 2y < -6
1) x - y > -2
2) x - 2y < -6
Is xy > 0 ?
1) x - y > -2
2) x - 2y < -6
1) X = 2 and Y = 3
XY > 0
X = - 0.5 and Y = 1
XY < 0
2) X = 2 and Y = 3
XY > 0
X = -0.5 and Y = 3
XY < 0
Now combine both
X> Y - 2
X < -6 + 2y
The only values that suffice are values greater than 4 for y and greater than 2 for x. Hence C is the answer.