Solve each of the following systems of equations graphically:
2x + 3y – 4 = 0,
3x – y + 5 = 0
We can rewrite the equations as:
2x + 3y = 4
& 3x – y = - 5
For equation, 2x + 3y = 4
First, take x = 0 and find the value of y.
Then, take y = 0 and find the value of x.
x | 0 | 2 |
y | 4/3 | 0 |
Now similarly solve for equation, 3x – y = - 5
x | 0 | - 5/3 |
y | 5 | 0 |
Plot the values in a graph and find the intersecting point for the solution.
Hence, the solution so obtained from the graph is ( - 1,2), which is the intersecting point of the two lines.