Question

If the points (1,-1), (2, 3) and (k, 3) are collinear then the value of K?​

Answer 1

x1=1 x2=2 x3=k

y1=-1 y2=3 y3= 3

by using centroid formula

x= x1+x2+x3 y=y1 +y2+y3

_________ _________

3 3

1+2+k -1+3+3

--------- _____

3 3

3 k 2+3 =5

_ --------

3 3

1=k

y= 5/3

I hope it is help full for you

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Answer 2

Answer:

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