Which of the following is incorrect?

1 point
The point (4, 0) lies on the graph of the linear equation 3x + 4y = 12
The linear equation 4x – y = x – 1 has unique solution
Graph of equation x=1 is a line parallel to y -axis
Graph of equation y=1 is a line parallel to x -axis

1 answer

well, check them out
3*4 + 4*0 = 12 -- true
The second one simplifies to y = 3x+1, which is a line with many points (solutions) on it.
The last two are clearly true -- graph them to see.