To the nearest hundredth, what is the length of line segment AB?

A  = (1, 1)

B = ( 4, 4)

Using the distance formula

sqrt [ (4 - 1)^2 + (4 - 1)^2 ]  = 

sqrt [ 3^2 + 3^2 ]  =

sqrt [ 9 + 9 ]  =

sqrt (18)   ≈  4.24  units