Question

A unique solution for a pair of linear equations is obtained if

S1 : the graphs of the equations have only one point of intersection.

S2 : The ratio of coefficients of the two variables are equal.

• A. S1 is true and S2 is false
• B. S1 is false and S2 is true
• C. S1 and S2 are true
• D. S1 and S2 is false

Answer 1

The correct option is A

S1 is true and S2 is false

A unique solution is obtained when the ratio of the coefficients of the two variables is not the same. Hence there is only one point of intersection of the graphs.