What is the distance between Kevin and James?

[list=1][br][*]Plot the points on a coordinate system.[br][*]Draw lines to form a right triangle, using each point as the end of the hypotenuse.[br][*]Calculate the length of the vertical side, [i]a[/i], of the right triangle.[br][*]Calculate the length of the horizontal side, [i]b[/i], of the right triangle.[br][*]Use the Pythagorean Theorem to calculate the length of the hypotenuse, [i]c[/i].[br][/list]