Question

The pair of equations x + 2y-5= 0 and x + 4y - 10 = 0 has -
(a) a unique solution
(b) exactly two solution
(c) infinitely many solutions.
(d) no solutions​

Answer 1

Answer:

$x +2y - 5 = 0 \: \: \: \: \: \: \: \: ( {eq}^{n} )1 \\ \\ \\ \\ \\ x + 4y - 10 = 0 \: \: \: \: ({eq}^{n}) 2 \\ \\ \\ \frac{1}{1} = \frac{2}{4} = ( \frac{ - 5}{10} ) \\ \\ \frac{1}{1} = \frac{1}{2} = - \frac{1}{2}$

=> 1/2 ≠ 1/2

which means the equation has unique Solution .

Answer 2

Answer:

indefinitely many solution