ESO / Batxillerat
Systems of equations: graph and elimination
The graph shows one, none or infinitely many solutions. Elimination cancels a variable — often fastest in exams.
Exercises
- Sketch y = 2x + 1 and y = -x + 4
- Eliminate using 3x + 2y = 12 and 3x - y = 3
FAQ
Is the graph exact?
Good for intuition; finish with algebra for the mark.