What is the distance between $(-12,4)$ and $(9,3)$ ?

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Answer 1 · 2016-03-17T20:44:32

$d = 21.023$

The distance formula is $d=sqrt((y_2-y_1)^2 + (x_2-x_1)^2)$

$(-12,4) and (9,3)$

$x_1 = -12$
$y_1 = 4$
$x_2 = 9$
$y_2 = 3$

$d=sqrt((y_2-y_1)^2 + (x_2-x_1)^2)$
$d=sqrt((3-4)^2 + (9-(-12))^2)$
$d=sqrt((-1)^2 + (21)^2)$
$d=sqrt(1 + 441)$
$d=sqrt(442)$
$d=21.023$

What is the distance between (-12,4)(-12,4) and (9,3)(9,3)?