Question

Taking the square root of which of the following expressions gives the length of the line segment shown?
https://clackamasweb.owschools.com/media/g_ima01_2014/4/pg4m.gif

3^2 + (-5)^2
4^2 + 7^2
7^2 - 4^2

Answer 1

from -1 to 3 is 4 steps
from 2 to -5 is 7 steps
pythag gives distance as
none of above

Answer 2

what do you mean? It has to be one of the above..