CBSE Class 10 Answered
The pair of equations y = 0 and y = -7 has :
A.
infinitely many solutions
B.
two solutions
C.
one solution
D.
no solution
Asked by Manisha Nayak | 24 Sep, 2012, 06:38: PM
Expert Answer
The equation of the line y = 0 is x-axis itself and the equation of the line y = ?7 is parallel to x-axis at a 7 units below it which are shown on a graph as shown below.
Since, these lines are parallel so, they have no common solution.
Therefore, the correct answer is D.
Answered by | 24 Sep, 2012, 09:32: PM
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