C-11-Q063mediumsingle_mcqA(x1,y1)A(x_1, y_1)A(x1,y1) ও B(x2,y2)B(x_2, y_2)B(x2,y2) বিন্দুগামী সরলরেখার ঢাল—ax2−x1y2−y1\dfrac{x_2 - x_1}{y_2 - y_1}y2−y1x2−x1by2−y1x2−x1\dfrac{y_2 - y_1}{x_2 - x_1}x2−x1y2−y1c(y2−y1)(x2−x1)(y_2 - y_1)(x_2 - x_1)(y2−y1)(x2−x1)dy1+y2x1+x2\dfrac{y_1 + y_2}{x_1 + x_2}x1+x2y1+y2