Question

determine whether the points are colliner A(1,-3), B(2,-5) , C (-4,7) ​

Answer 1

Answer:

you use this steps for solving questions

Step-by-step explanation:

this is your answer.

Answer 2

Step-by-step explanation:

if points are collinear then the area of triangle formed by them must be zero

X1=1 ,X2=2,x3=-4 ,y1=-3 ,y2=-5 ,y3= 7

1/2[X1(y2-y3)+X2(y3-y1)+x3(y1-y2)

1/2[1(-5-7)+2(7+3)+-4(-3+5)

1/2(-5-7+14+6+12-20)

1/2(-32+32

1/2×0

0

the points A(1,-3),B(2,-5),C(-4,7)are collinear