Quote:
Originally Posted by gmatcraze
Can someone please help to explain this concept in detail .... thanks
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X intercept means the point where the line touches x-axis.Let it be 'a'.The point would be (a,0).
Y intercept means the point where the line touches y-axis.Let it be 'b'.The point would be (0,b).
Here the product of those intercepts is negative.
So a=+ve and b=-ve or
a=-ve and b=+ve
One point would be (+ve value,0),(0,-ve value).A line connecting these points would be in the 4th Quad.
In the second case,the point would be (-ve value,0) and (0,+ve value).A line connecting these points would be in the 2nd Quad.
When you move from left to right,the lines are going upward.So the slope is +ve.