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(A) Complete any one out of two activiti...

(A) Complete any one out of two activities :
Complete the following activity to show the points ` P(3,0) Q (6,-2) and R (-3,4)` are collinear .
Let `P( 3,0) = (x_(1) ,y_(1))`
` Q (6,-2)= (x_(2),y_(2))`
` R (-3,4) = (x_(3) , y_(3))`
slope of a line `PQ = (y_(2)-square)/(x_(2) -x_(1)) = (-2-0)/(6-3)= square " "` ...(1)
slope of line ` QR = (y_(3) -y_(2))/(x_(3)-x_(2))= (square -(-2))/(-3-6) = (4+2)/(-9)`
` = 6/(-9) `
` = square " "` ... (2)
`:. ` from (1) and (2)
the slopes of lines PQ and QR are ` square` and point ` square` is the
` :. ` points P,Q and R are collinear .

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The correct Answer is:
`y_(1),(-2)/3, 4, (-2)/3 , ` equal , Q
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