Question

If A and B are the points (−6, 7) and (−1, −5) respectively, then the distance

2AB is equal to

Options

• A. 13

• B. 26

• C. 169

• D. 238

Answer 1

The given points are A (−6, 7) and B (−1, −5).

`therefore AB=sqrt((-6-(-1))^2+(7-(-5))2)`

`=sqrt((-6+1)^2+(7+5)^2)`

`=sqrt((-5)^2+(12)^2)`

`=sqrt(25+144)`

`=sqrt169`

`=13`

`therefore 2AB=2xx13=26`

Thus, the distance 2AB is 26 units.

The correct answer is B.