Question

If the points A(5,1), B(1,-1), C(k,4) are collinear, then k​

Answer 1

Answer:

11

Step-by-step explanation:

If A,B&C are collinear, then

slope of AB = slope of BC = slope of AC

Therefore, [1 - (-1)]/[5 - 1] = [4 - 1]/[k - 5]

solving the above equation, we get k=11