The value of k for which the points (2,-3),(4,3) and (5,k are on the same straight line is :A2B4C6D8Answer: C. 6 Read Explanation: Eqn of the line by y−y1x−x1=y2−y1x2−x1\frac{y-y_1}{x-x_1}=\frac{y_2-y_1}{x_2-x_1}x−x1y−y1=x2−x1y2−y1y+3x−2=3+34−2\frac{y+3}{x-2}=\frac{3+3}{4-2}x−2y+3=4−23+3y+3x−2=62\frac{y+3}{x-2}=\frac{6}{2}x−2y+3=26(y+3)=3(x−2)(y+3)=3(x-2)(y+3)=3(x−2)3x−6=(y+3)3x-6=(y+3)3x−6=(y+3)3x−y=93x-y=93x−y=93×5−k=93\times 5 -k =93×5−k=915−k=915-k=915−k=9−k=−6-k=-6−k=−6k=6k=6k=6 Read more in App
