Question

16. Find the value of K for which the points A (0, 1), B (2, K) an
C(4,-5) are collinear.
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Answer 1

Answer:

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Answer 2

Answer:

apply the formula for area of triangle , then as the points are collinear the area will be 0

Step-by-step explanation:

Let x1=0,x2=2 and x3=4

     y1=1,y2=k   and y3=5

Area of triangle= 1/2 [x1(y2-y3)+x2(y3-y1)+x3(y1-y2)] = 0

now substitute the values of x1,x2,x3,y1,y2,y3 in the above equation.

Hope this helps you