__B__

**Bar
graph **A graph in which the length of a bar is used to represent a numerical
amount

**Base
**(of numeration system) The number upon which the place values of a system
are based. For example,

10
is the base of our decimal system, and 2 is the base of the binary system

**Base
**(with exponents) The number being used as a factor in a problem with
exponents

**Base
of a geometric** **figure ** A selected side or face.

**Base,
in percent relationship **p. The
number of which a percent is taken.

**Base,
numerical **A number that is raised to some power.
In 5^{3}, 5 is the
base.

**Binary
notation **The system of numeration using two as its base

**Bisect
** To divide a geometric figure into two congruent parts.

**Bisector
**(of angle) The ray which divides an angle into two angles having equal
mea1sures

**Bisector
**(of line segment) The line (or point) which divides a line segment into two
congruent segments

**Box-and-whisker
plot **A data display that uses a box to indicate the middle 0% of the data
and whiskers to

indicate
the lower and upper % of the data.

**Braces
**The symbols used when defining or listing the elements of a set

**Broken
line graph **A line graph in which line segments are used to connect the
points which represent the given

data