Question

A grid shows the positions of a subway stop and your house. The subway stop is located at (7, -6) and your house is located at (-9, 5). What is the distance, to the nearest unit, between your house and the subway stop?

Answer 1

Distance = sqrt (x2 - x1)^2 + (y2 - y1)^2
(7,-6)(-9,5)

d = sqrt (-9 - 7)^2 + (5 - (-6))^2
d = dsrt (- 16)^2 + (11)^2
d = sqrt (256 + 121)
d = sqrt 377
d = 19.4 rounded to the nearest unit is 19