What is the distance between the points (12,3) and (-8,3)?

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Answer 1 · 2017-02-11T14:20:53

The distance between the two points is 20.

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)#

Substituting the values from the points in the problem gives:

#d = sqrt((color(red)(-8) - color(blue)(12))^2 + (color(red)(3) - color(blue)(3))^2)#

#d = sqrt((-20)^2 + 0^2)#

#d = sqrt(400 + 0)#

#d = sqrt(400) = 20#