Are Coincident Lines Consistent?

When a linear pair of equations has one solution (intersecting lines) or infinitely many solutions (coincident lines), we say that it is a consistent pair. On the other hand, when a linear pair has no solution (parallel, non-coincident lines), we say that it is an inconsistent pair.

How do you know if a line is consistent or inconsistent?

If a consistent system has exactly one solution, it is independent .
  1. If a consistent system has an infinite number of solutions, it is dependent . When you graph the equations, both equations represent the same line.
  2. If a system has no solution, it is said to be inconsistent .

Is coincident consistent?

If the pair of lines are coincident, then we say that pair is consistent and it has a unique solution.

Alexander Ross

Alexander Ross

Gaming, Esports & Interactive Media Writer

Alexander Ross has covered the video game industry for a decade, writing deep dives on game design, esports tournaments, VR developments, and gaming culture.