Question

find the value of K , if the points (7,2),(5,1) & (3,k) are collinear​

Answer 1

Answer:

0

Step-by-step explanation:

Given,A(7,2) (x1,y1)

B(5,1). (x2,y2)

C(3,k) (x3,y3)are collinear.

Then,area of triangle=0

area of ∆le=|x1(y2-y3)+x2(y3-y1)+x3(y1-y2)|

0 =|7(1-k)+5(k-2)+3(2-1)|

0 =|7-7k+5k-10+6-3|

0 =|7-2k-7|

0 =|-2k|

therefore, 0 =k

HOPE U UNDERSTOOD