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The path of a train A is given by the equation x+2y-4=0 & the path of another train B is given by the equation 2x+4y=0 represent this situation

graphically & find whether the two train meet each other at some place


Put the value of x or y and find the value of another.
example: take equation (1) 
put y = 2
x+4-4 = 0
you can find the other value of x and y on putting the any value of y
for both equation you find the value x and y and plat the graph (i can not plat here) 
since both equation parallel to each other hence they can never meet
hence, both train never meet or can say they meet at infinity .
0 0 0
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