Point C is on line segment start overline, B, D, end overline

BD
. Given C, D, equals, 11CD=11 and B, D, equals, 15, commaBD=15, determine the length start overline, B, C, end overline, .
BC
.

To find the length of BC, we first need to find the length of BD using the given information that BD = 15.

Now, since CD = 11, we can calculate the length of BC using the formula for the sum of the lengths of two segments on a line:

BD = BC + CD
15 = BC + 11

Subtracting 11 from both sides gives us:

4 = BC

Therefore, the length of BC is 4.