Question

A(k−9,k−13), B(k−5,m)C(k,k-4)are 3 collinear points . find the value of m in terms of k

Answer 1

Answer:

m=k-9

slope of AB=slope of BC

m-k+13/k-5-k+9=k-4-m/k-k+5

m-k+13/4=k-4-m/5

4k-16-4m=5m-5k+65

9k-81=9m

m=k-9

Answer 2

see above..................