$$P_1(2/1),P_2(1/4)P_3(4/2)$$$$P_4(2/3)P_5(-2/-1),P_6(-8/10) $$gehören zum Graphen der linearen Gleichung?
a)$$2x + 3y =14$$$$2x-14=-3y→$$$$P_3(4/2);P_6(-8/10)$$
b)$$5x - 3y = -7$$$$5x+7=3y→$$$$P_2(1/4);P_5(-2/-1)$$
c)$$x/4 - y/2=0$$$$x -2y=0→$$$$P1(2/1),P3(4/2)P5(-2/-1)$$
d) $$y = -0,9x + 2,8→P_6(-8/10)$$