Distance
To be able to do this you need to know the basics of graphing and pythagorean theorem.
Step one
You are trying to find the distance of two points on a graph. BY using rise/run make a triangle out of those points. The distance should be C or the hypothenuse of the triangle.
Step two
Follow the rules to finding the hypothenuse of the triangle (or the distance). Click the button bellow to learn how to do Pythagorean theorem.
Step three
finishing up and getting C/hypothenuse (they equal the distance).
you are now done
Still need help? Here's a website that can help you: http://www.purplemath.com/modules/distform.htm.