What is the distance between # (–2, 1, 3) # and #(–4, 0, 2) #?

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Answer 1 · 2017-03-14T19:05:40

See the entire solution process below:

The formula for calculating the distance between two points is:

#d = sqrt((color(red)(x_2) - color(blue)(x_1))^2 + (color(red)(y_2) - color(blue)(y_1))^2 + (color(red)(z_2) - color(blue)(z_1))^2)#

Substituting the values from the points in the problem gives:

#d = sqrt((color(red)(-4) - color(blue)(-2))^2 + (color(red)(0) - color(blue)(1))^2 + (color(red)(2) - color(blue)(3))^2)#

#d = sqrt((color(red)(-4) + color(blue)(2))^2 + (color(red)(0) - color(blue)(1))^2 + (color(red)(2) - color(blue)(3))^2)#

#d = sqrt((-2)^2 + (-1)^2 + (-1)^2)#

#d = sqrt(4 + 1 + 1)#

#d = sqrt(6) = 2.449# rounded to the nearest thousandth.