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Q.

The pair of equations y=0   and y=−7   has:


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a

     one solution

b

     two solutions

c

     infinitely many solutions

d

     no solution 

answer is D.

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Detailed Solution

We need to find the number of solutions in the pair of equations y=0, y=-7.
Consider the graph,
Question ImageWe know that,
Both lines are parallel so there is no solution of equations.
Hence, option 4 is correct.
 
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