Hello!
Given the two points,
and
, to find the length between these two points is found by using the formula:

is assigned to one the points, the first point can be assigned to (2, 5).
is assigned to other point, which is (9, 8).
Then, plug in these values into the formula and solve.



or about
.
Therefore, the length of the line segment that joins the two points is √58.