Prove that the points (2, –2), (-3, 8) and (-1, 4) are collinear.1. Prove that the points (2, –2), (-3, 8) and (-1, 4) are collinear.
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Answered by
1
if given points gain area of triangle is zero then all three points are collinear
now (2,-2) (-3,8) and (-1,4)
area of triangle =1/2 {2 (8-4)-3 (4+2)-1 (-2-8)}=1/2 {8-18 +10}=0
hence all three points are collinear
make my answer the brainliest pls
Answered by
2
Answer:
let A= (3,2)
B= (-2,8)
C= (0,4)
so by using slope formula we have
[8-(-2)]/[-2-3] = 10/-5 = -2
and
[ 4-8]/[0-(-2)] = -4/2 = -2
hence proved that the given points A B and C are colinear
hope u will be satisfied with my answer
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