Question

If `A=(-2, -4)` and `B=(-8, 4)`, what is the length of `AB`?

Answer 1

Length of `AB =10` unit

Explanation:

`A= (-2 ,-4) and B= (-8,4)`

Distance formula is `d= sqrt((x_1-x_2)^2+(y_1-y_2)^2)`

Length of `AB = sqrt((-2+8)^2+(-4-4)^2)`

`=sqrt (6^2+(-8)^2) = sqrt 100 =10` unit [Ans]