What is the distance between $(-2,1)$ and $(–4, 7)$ ?

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Answer 1 · 2016-03-11T19:30:30

$d=2sqrt(10)$
$d=6.32$

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

$(-2,1) and (-4,7)$

$x_1 = -2$
$y_1 = 1$
$x_2 = -4$
$y_2 = 7$

$d=sqrt((y_2-y_1)^2 + (x_2-x_1)^2)$
$d=sqrt((7-1)^2 + (-4-(-2))^2)$
$d=sqrt((6)^2 + (-2)^2)$
$d=sqrt(36 + 4)$
$d=sqrt(40)$
$d=2sqrt(10)$
$d=6.32$

What is the distance between (-2,1)(-2,1) and (–4, 7) (–4, 7) ?