Question

If the endpoints of `AB` are `A(-4, 5)` and `B(2,-5)`, what is the length of `AB`?

Answer 1

Lenght, d=11.66

Explanation:

use the distance formula:
`d = sqrt((x1 - x2)^2 + (y1 - y2)^2)`
`x1 = -4`
`y1 = 5`
`x2 = 2`
`y2 = -5`
`d=sqrt((-4-2)^2 + (5 - (-5))^2)`
`d=sqrt((-6)^2 + 10^2)`
`d=sqrt(36+100)`
`d=sqrt136`
`d=11.66`