Question

a.)If the points (3,-8),(4, -11) and (5,-k) are collinear, then the value of k is
1) 14
2)-8
3) 4
4) 5​

Answer 1

Step-by-step explanation:

formula of collinear

X1*[y2-y3]+X2*[Y3-Y1]+X3*[Y1-Y2]=0

3*[-11-(-8)]+4*[-k-(-8)]+5*[-8-(-11)]=0

3*[-3]+4*[8-k]+5*[3]=0

-9+32-4k+15=0

4k=38

k=38/4

k=19/2

MARK IT AS BRAINLIEST

Answer 2

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