Question

Are the points (-5, -1), (1,4), and (6,-2) the vertices of a right triangle?

Answer 1

do you know how to find the slopes of the points?

Answer 2

yes

Answer 3

you can use pythagorean theorem. i would first graph it though

Answer 4

determine lengths between points and see if they pythag

Answer 5

you have to find the slopes and then see if one slope is the opposite recriprocal of another slope

Answer 6

if you can work vectors, we still need lengths and a more generalized pythag .... wither way

Answer 7

reciprocal*

Answer 8

slope method is fair too

Answer 9

if the dot product of 2 vectors is equal to 0, that tells us they are perps too