Question

find the value of k if the point A (5,4) B (- 3,k) and C (0,4) are collinear​

Answer 1

93Answer:

Step-by-step explanation:

Given

A(5,4)    B(-3,K)     C(0,4)

Area of Triangle = 1/2 [X1 (y2-y3)+X2(y3-y1)+X3(y1-y2)]

0=1/2[5(k-4)+(-3)(4-4)+0(4-k)]

0*2=[5K-20+(-3)(0)+0]

=[5K-20+0+0]

= 5K-20

5K= -20

K= -20/5

K= -4