Question

1. Find the value of k if the coordinates of the point
(A(2,-2) B (-4,2) C (-7,k ) are coolinear

Answer 1

Step-by-step explanation:

As the points are collinear so their slope are also same.

So,As the points are collinear so their slope are also same.

So,

$\frac{2 - ( - 2)}{ - 4 - 2} = \frac{k - 2}{ - 7 - ( - 4)} \\ or. \frac{2 + 2}{ - 6} = \frac{k - 2}{ - 7 + 4 } \\ or. \frac{4}{ - 6} = \frac{k - 2}{ - 3} \\ or. \frac{2}{ - 3} = \frac{k - 2}{ - 3} \\ or.2 = k - 2 \\ or.k = 2 + 2 \\ or.k = 4$

or,k=4