Question

Find the distance of  the following points from the origin:

(ii) B(-5,5)

Answer 1

B(-5,5)

Let O(0,0) be the origin.

`OB = sqrt((-5-0)^2 + (5-0)^2)`

`= sqrt((-5)^2 +(5)^2)`

`=sqrt(25+25)`

`=sqrt(50)`

`= sqrt(25xx2)`

`=5 sqrt(2)` units