## anonymous 5 years ago use the distance formula to find th distance between each pair of points. a. (3,7), (7,7) b. (9,2), (10,4) c.(5,3), (8,3)

1. anonymous

For a pair of points, $(x_1,y_1),(x_2,y_2)$the distance is$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$For the first pair:$d_1=\sqrt{(7-3)^2+(7-7)^2}=\sqrt{4^2}=4$For the second pair:$d_2=\sqrt{(10-9)^2+(4-2)^2}=\sqrt{1+4}=\sqrt{5}$For the third:$d_3=\sqrt{(8-5)^2+(3-3)^2}=\sqrt{3^2}=3$

2. anonymous

great thanks Lokisan :)

3. anonymous

np