Law of Exponents for Multiplication
(LAW UHV ek-SPOH-nuhnts FOR
muhl-tuh-pluh-KAY-shuhn) am• anamn,
where a 0. (p. 19)
Law of Exponents for Zero(LAW UHV
ek-SPOH-nuhnts FOR ZEER-oh) a^0 1,
where a 0. (p. 19)
Laws of Exponents(LAWZ UHV
ek-SPOH-nuhnts) Laws used to simplify
expressions that include exponents. (p. 19)
least common denominator (LCD) (LEEST
KOM-uhn di-NOM-uh-nay-tur [EL SEE DEE])
The least common multiple of the denominators
of two or more fractions. (p. 113)
least common multiple (LCM)(LEEST
KOM-uhn MUHL-tuh-puhl [EL SEE EM]) The
least nonzero common multiple of two or more
numbers. (p. 112)
legs(LEGZ) The sides that form the right angle of
a right triangle. (p. 280)
likelihood of an event (LIKE-lee-hud UHV AN
i-VENT) The chance of an event happening. (p. 330)
like terms (LIKE TERMZ) Terms that have the
same variables raised to the same power or terms
that contain no variables (constants). (p. 32)
line (LINE) A continuous set of points in a straight
path that extends without end in both directions.
(p. 240)
linear function (LIN-ee-ur FUHNGK-shuhn) A
function whose graph is a nonvertical line or part
of a line. (p. 363)
linear pair (LIN-ee-ur PAIR) A pair of angles that
are adjacent and supplementary. Their unshared
sides form a straight angle. (p. 244)
line of best fit (LINE UHV BEST FIT) A line
near the points of a scatter plot that clearly
shows the trend or correlation between two sets
of data. (p. 229)
line of reflection (LINE UHV ri-FLEK-shuhn)
The line over which a figure is flipped in order to
create a reflection. (p. 370)
line of symmetry (LINE UHV SIM-uh-tree) A
real or imaginary line that divides the figure into
mirror-image halves. (p. 290)
line plot (LINE PLOT) A graph that uses Xs to
show data on a number line; a method that is
especially useful for showing the mode and range
of a set of data. (p. 211)
line segment (LINE SEG-muhnt) A part of a line;
a line segment has two endpoints. (p. 240)line symmetry (LINE SIM-uh-tree) A figure has
line symmetry if a real or imaginary line, called
the line of symmetry, divides the figure into
mirror-image halves. (p. 290)
list price(LIST PRISE) The original price of an
item. (p. 194)
lower extreme (LOH-ur ek-STREEM) The lower
end of the “whisker” of a box-and-whisker plot; it
represents the least value of a set of data. (p. 222)
lower quartile (LOH-ur KWOR-tile) The lower
end of the “box” part of a box-and-whisker plot;
it represents the median of the lower half of a set
of data. (p. 222)
lowest terms (LOH-ist TERMZ) The form of a
fraction (or a mixed number) when 1 is the only
common factor of the numerator and
denominator; also called simplest form. (p. 111)
M
major arc (MAY-jur ARK) An arc that has a
measure greater than 180. (p. 262)
marked price (MARKT PRISE) The price of an
item before sales tax is added. (p. 192)
markup (MARK-uhp) The difference between the
wholesale price of an item and the list or retail
price. (p. 195)
markup rate (MARK-uhpRAYT) The ratio that
represents the percent increase in the wholesale
price. (p. 195)
mathematical expression (math-uh-MAT-i-kuhl
ek-SPRESH-uhn) A numerical or algebraic
expression containing mathematics symbols. (p. 30)
mean (MEEN) A type of statistical average found
by computing the sum of the data and dividing by
the number of items in the data set. (p. 210)
means of a proportion (MEENZ UHV UH pruh-
POR-shun) In the proportion a : bc: d, the
terms band c. (p. 152)
measures of central tendency(MEZH-urz UHV
SEN-truhl TEN-duhn-see) The mean, median,
and mode of a data set. (p. 210)
measures of dispersion (measures of variation)
(MEZH-urz UHV di-SPUR-zhuhn [MEZH-urz
UHV vair-ee-AY-shuhn]) Statistics that indicate
how data are spread out or distributed. (p. 213)
median (MEE-dee-uhn) The middle value of a set
of data that are arranged in order. If the set has
an even number of data, the median is the mean
of the two middle numbers. (p. 210)430 Glossary