Solving Systems By Graphing

Given 2 Equations:

4x + 2y = 12 and 6x - 2y = 16

1. Solve both equations in terms of y = ax+b.

y = -2x + 6 and y = 2x - 8

2. Graph both equations in graphing calculator.

Press y= button
Plug in the 2 equations into the y1=-2x + 6 and y2=2x - 8
Press Graph button

3. Create a table of values for each equation.

Press 2nd button
Press Graph button

4. Find intersection point (solution set) on graph.

Press 2nd button
Press Trace button
Scroll to 5: intersect and hit enter
Hit Enter button 3 times
Copy down intersection point as a coordinate point (x,y)

Example: (3.5, -1)