Simultaneous equation – Graphical method

Simultaneous equation – Graphical method

Linear equations give straight lines. While quadratic equations give curves.

Step2: From the table of values plot the two straight line graphs

Step 3: The Coordinator of the point where the two lines meet give the required solution.

Therefore x = 2, and y = -3 that is (2, -3).

Exercise: Solve graphically the following simultaneous equations (a) 2x – y = 0, 3x + 2y = 5

• 2x + 3y + 5 = 0, x + y + 2 + 0.