2017 · Q47
The system of equations 2x + 4y = 6 and 4x + 8y = 8 is
Elementary MathematicsAlgebra
- AConsistent with a unique solution
- BConsistent with infinitely many solutions
- CInconsistent
- DNone of the above
Explanation
Doubling the first equation gives 4x + 8y = 12, contradicting 4x + 8y = 8. The lines are parallel and distinct, so the system is inconsistent: option C.