ok tried to work that out again but still not getting correct answers, so I will post the new equation to that same problem.
D= Sqrt over (x2-x1)^2 +(y2+y1)^2
(0,5) (-3,-11) (2,-1) are these points colinear? the help section of the program instructs to use distance formula. I can get through all of it except the end. I need to find perfect sqrs for
sqrt 256, sqrt 40, sqrt 125
what is a way to get all 3 to common sqrt. maybe my math is incorrect in getting these sqrt's
my book, nor the program shows this step, both skip it and I cannot find an explination