Question

Find the value of k if the points A(8,1) , B(k,-4) and C(2,-5) are collinear.​

Answer 1

Answer:

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Answer 2

answer : k= 5

slope of line AC

-5-1÷2-8=1

as the points are collinear

so,

slope of line AC = slope of line AB

1=-4-1÷k-8

k=5