Question

Are the points A(0,-2), B(5,1) and C(-4,3) the vertices of a right triangle?

Answer 1

if the slopes between any two vectors are perps, then yes

Answer 2

A(0,-2), B(5,1) C(-4,3)
0+2 0+2 0+2
---------------------
5,3 -4,5 ; aint that set

A(0,-2), B(5,1) C(-4,3)
+4-3 +4-3 +4-3
----------------------
4,-5 9,2 ; aint those

A(0,-2), B(5,1) C(-4,3)
-5-1 -5-1 -5-1
-----------------------
-5,-3 -9,2 ; not that one either

id say no

Answer 3

in order for the vectors to be perp wed have to have a condition such that:

a,b -b,a
or
a,b b,-a

Answer 4

the closest we get to is that first set; but close just aint good enough