Question

if a point A (x,y) lie in 2nd and 4th quadrant the which of the following is true
a.x and y both have same sign
b.x and y have opposite sign
c.nothing can be said about the signs of x and y
d.X=y​

Answer 1

Answer:

First quadrant X= positive and Y=positive

Second quadrant X=negative and Y=positive

Third quadrant X=negative and Y=negative

Fourth quadrant X=positive and Y=negative

Now, the given points is (−x,−y) where x<0 and y<0. So,−x>0 and −y>0.

(−x,−y) has abscissa=−x,positive and ordinate =−y,positive