Question

write a pair of linear equation which has unique solution x= -1 and y = -2 how much such pairs can you write​

Answer 1

Answer:

Infinite

Explanation:

a1/a2 ≠ b1/b2

Let the equations be,

a1x + b1y + c1

= 0 a2x + b2y + c2

= 0 Since, x = – 1 and y = 3 is the unique solution of these two equations, then It must satisfy the equations – a1(-1) + b1(3) + c1 = 0 – a1 + 3b1 + c1

= 0 …

(i) and a2(- 1) + b2(3) + c2 = 0 – a2 + 3b2 + c2 = 0 …

(ii) Since for the different values of a1, b1, c1 and a2, b2, c2 satisfy the Eqs.

Thus, infinite pair's we can write

$hope \: \: it \: \: helps \: \: you$

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