verify whether the points (1, - 1), (4, - 1), (- 2, - 3) are collinear or not by using distance formula
Answers
Answered by
0
Answer:
Answer
A(1,−1),B(5,2),C(9,5)
AB=
(5−1)
2
+(2−(−1))
2
=
4
2
+3
2
=
25
=5
BC=
(9−5)
2
+(5−2)
2
=
4
2
+3
2
=
25
=5
CA=
(9−1)
2
+(5−(−1)
2
)
=
8
2
+6
2
=
100
=10
∴ as AB+BC=CA
A,B,C are collinear.
Step-by-step explanation:
Answered by
0
Answer:
they are not collinear
Step-by-step explanation:
Let the points be denoted by A(1,-1); B(4,-1);C(-2,-3)
AB= 3 units ( using distance formula)
BC=root 13 (using distance formula)
AC= root 40 (using distance formula)
since sum two sides is not equal to third side, they are not collinear
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