Si se da una función de costes y una función de ingresos ¿como se determina la función de beneficios?

The answer would he -4,-2 because the points are just on the opposite side. since the x axis is +4 it's going to he -4 and since the y axis is -2 it stays there because whaen rotated it stays in the third quadrant

31/6= 19/6 19/6 *1/7=19/42