Answer: (a) parallel lines Solution: The given system can be writlen us follows: $x+2 y-3=0$ and $2 x+4 y+7=0$ Given equations are of the following form: $a_{1} x+b_{1} x+c_{1}=0$ and $a_{2} x+b_{2}...
The graphic representation of the equations 
and 
gives a pair of
(a) parallel lines
(b) intersecting lines
(c) coincident lines
(d) none of these
read more
audio cassettes and 
videocassettes cost 
, while 
audio cassettes and 
videocassettes cost 
. Find the cost of audio cassettes and a video cassette.