determine whether the points are colinear .

A(1,-3) B(2,-5)C(-4,7)

# determine whether the points are colinear .

### 1 thought on “determine whether the points are colinear . <br />A(1,-3) B(2,-5)C(-4,7)”

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Step-by-step explanation:A(1,−3),B(2,−5),C(−4,7)

AB=

(1−2)

2

+(−3−(−5))

2

(−1)

2

+2

2

=

5

BC=

(2−(−4))

2

+(−5−7)

2

36+144

180

=6

5

AC=

(−1−(−4))

2

+(−3−7)

2

=

25+100

=

125

=5

5

AB+AC=BC

5

+5

5

=6

5