If k is a constant, then the equations k x + y = 3 and : Crackverbal Support

If k is a constant, then the equations kx + y = 3 and Print

Modified on: Tue, 12 Oct, 2021 at 1:33 PM

Concept: The question tests on concepts of equations

Solution:

For any 2 equations of the for a1x + b1y = c1 and a2x + b2y = c2, we get a unique solution when a1/a2≠b1/b2

Therefore in the system of equations given, we get a unique solution when k/4≠1/k

Solving, we get k^2≠4, or k≠±2 which is the same as |k| ≠ 2

Option C

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