Write the correct answer in each of the following :
1. The linear equation \(3x – 4y = 8\) has
2. The equation \(3x + 8y = 7\) has a infinite many solution, if \(x, y\) are
3. If \((3, 8)\) is a solution of the linear equation \(8x + 4y = k\), then the value of \(k\) is