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Q1. If the pair of inear equations in two variables has infinite number f solutions, then the lines represented by these equations are 


(a) intersecting lines


(b) coincident lines


(c) parallel lines 


(d) perpendicular 


Q2. The graph of th equations x - 2y + 3 = 0 and 2x - 4y + 5 = 0 are  


Q3. The graph of th equations x + 3y - 2 = 0 and 2x - 5y + 1 = 0 are 


Q4. The solution of the pair of linear equations 3x + 4y + 7 = 0 and 5x - 7y - 2 = 0


Q5. The solution of the pair of linear equations 3x - 4y + 11 = 0 and 7x + 11y - 15 = 0 is 


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