Question

A grid shows the positions of a subway stop and your house. The subway stop is located at (-5, 2) and your house is located at (-9, 9). What is the distance, to the nearest unit, between your house and the subway stop?

Answer 1

I believe that the answer is 9.8

Answer 2

√((-3-7)^2 + (3-(-7))^2) ... using the Pythagorean theorem 
.. = √((-10)^2 + 10^2) 
.. = √200 ≈ 14.14 ≈ 14 .. grid units