Question

How many units apart are the points (-8,-8) and (4,8)

Answer 1

use the distance formula:\[d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\]

Answer 2

so in this case:\[d=\sqrt{(4-(-8))^2+(8-(-8))^2}\]\[d=\sqrt{(4+8)^2+(8+8)^2}\]i think you can go on from there :)

Answer 3

plot the points and create a right triangle



now use pyhtagoras' theorem to find the length of the hypotenuse in a triangles with shorter sides 16 and 12