Question

If A (10, – 12), B (2, 0) and C (12, – k) are three collinear points, then find the value of k.​

Answer 1

Step-by-step explanation:

10-2/2-12 = -12-0/0-(-k)

8/-10=-12/k

4/-5= -12/k

4k= -12*-5

4k= 60

k=60/4

k=15