Call the points and .
The distance between the points is simply .
This is just pythagoras, making a right angle triangle and finding the lenght of the hypotenuse.
Hope this helps
Craig
i need to find the distance between these two points on a graph (1,3) and (-2,7)
its a multiple choise question and the options are, sqrt of 5, 25,7 and 5
soely on instinct, i beleive the awnser is 7, but i don't actuallyk now the formula to check it. so any help would be much appreciated.