What is the distance between the points (6, -7) and (1, 5)?

Question

What is the distance between the points (6, -7) and (1, 5)?

Answer 1

Plot the line on graph paper.  Then plot the horizontal and vertical lines to form a triangle.

 

Call the longest side "a"

 

a^2 = b^2 + c^2  (Pythagorean theorem)

 

So:

a = √( b^2 + c^2)