Question

8.)(i) Show that the points (5, -3), (9, 5) and (11, 9) are collinear. ​

Answer 1

Answer:

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Step-by-step explanation:

it should be done in graph...

Answer 2

Solution:

Let the three collinear points be (x1,y1), (x2,y2) and (x3,y3)

The condition of collinearity is 

x1(y2−y3)+x2(y3−y1)+x3(y1−y2)=0

Here, the given points are (5,-3), (9,5) and (11,9)

=5(5−9)+9(9−(-3))+11(-3−5)

=5(−4)+9(12)+11(−8)

= -20+108−88

=0

Hence, points (5,-3), (9,5) and (11,9) are collinear.