Question

13 Graphically the pair of equations 5x - y + 6 = 0,
2x - 2/5y+ 7 = 0 represent two lines which are :
(a) intersecting and coincident
(b) intersecting at exactly two points
(c) coincident
(d) parallel

Answer 1

given equations: 5x-y+6=0, 2x-2/5y+7=0

on solving 2nd equation, 5x-y+35/2=0

here the slopes of the 2 equations are same but different in the constant value

so these lines are parallel lines.

hope this helps you !