Question

if the points (×,2) (-3,-4)(7,-5) are collinear find the x
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Answer 1

Answer:

x=-63

Step-by-step explanation:

use area of triangle to find this

1/2(x1(y2-y3)+x2(y3-y1)+x3(y1-y2))=0

(x(-4-(-5))+(-3)(-5-2)+7(2-(-4)))=0

(x(1)-3(-7)+7(6))=0

(x+21+42)=0

63+x=0

x=-63

may this is helpful