Q.

The number of solutions given by a pair of coincident lines


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a

Simple solution

b

Definite solution

c

Finite solution

d

Infinite solution 

answer is D.

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Detailed Solution

Given a pair of coincident lines.
Coincident lines: - Two lines or shapes that lie exactly on top of each other.
A pair of the coincident lines has infinite solutions,
If pair of linear equation is given by a 1 x+ b 1 y+ c 1 =0   and a 2 x+ b 2 y+ c 2 =0   , then the following situations can arise, a 1 b 1 = a 2 b 2 = c 1 c 2   In this case, the pair of the linear equation has infinitely many solutions (consistent pair of equations). It is the graphical representation of a coincident line and algebraically it is an infinite solution.
The number of solutions given by a pair of coincident lines is an infinite solution.
Therefore, the correct option is 4.
 
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