Graphically the solutions are just the points on the line 4x
Solution
2, The graph is only illustrative. The graph only illustrates that the solution of the equation will lie on the line. The paricular solutions of the equation 2x + 3y = -4 can be obtained by substituting arbitrary values of x like -2, 1, -1/2 and determining the corresponding values of y from the equation:
i. When x = - 2, we have 2(- 2)+3y = - 4or, -4 + 3y = -4 or, 3y = 0 so that y = 0. Thus one paricular solution is (-2,0)
ii. When x = 1, we have 2(1)+3y = - 4 or, 2 + 3y = -4 or, 3y = -6 so that y = -2 Thus 2nd paricular solution is (1, -2)
iii. When x = -1/2, we have 2(-1/2)+3y = - 4 or, -1 + 3y = -4 or, 3y = -3 so that y = -1Thus 3rd paricular solution is ( ( - 1/2, - 1).
The general solution can be found by seperating the terms of x and y. We have 2x + 3y = -4 or, 3y = - 4 - 2x or, y = - 4/3 - 2/3x. Thus, the general solution is ( x, - 4/3 - 2/3x)
