Q. The two points $(a,2)$ and $(-3,b)$ lie on 1st and 3rd quadrant respectively. If $ab \neq 0$, in which quadrant does the point $(a,b)$ lie?
a). 1st quadrant
b). 2nd quadrant
c). 3rd quadrant
d). 4th quadrant.
I couldn't get any idea to interpret the question. Please help.
Thanks.