Question

Plot the points P(6, 6), Q(4,4) and R(-1,- 1) in the cartesian plane and check whether they are collinear.​

Answer 1

Answer:

Plot the following points and check whether they are collinear or not

(i) (X 3), (-X -1), (-2, – 3)

(ii) (1,1), (2, – 3), (-X – 2)

(iii) (0,0),(2,2),(5,5)

Thinking Process

(i) Firstly, plot all three points on a graph paper and join them.

(ii) If it lives a straight line, then points are collinear otherwise non-collinear

Answer 2

Answer:

For collinear of points, area must be zero or x1(y1-y2)+x2(y2-y3)+x3(y3-y1)=0

Step-by-step explanation:

6(6-4)+4(4-(-1))+(-1)(-1-6)=0

6×2+4×(4+1)-1×-7=0

12+4×5+7=0

12+20+7=0

39 which is not equal to zero

so these points are not collinear

Hopefully it's helpful for you

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