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face
A flat surface of a three-dimensional figure.
factor
One of two or more expressions that are multiplied
together to get a product.
factor tree
A diagram representing a systematic way of
determining all the prime factors of a number.
factoring
To break a number into its factors.
Fahrenheit
Temperature scale in which water boils at
212 degrees and freezes at 32 degrees.
Fibonacci Sequence
A sequence whereby each number is the sum
of the two numbers preceding it.
figure
Two dimensional shapes are often referred
to as figures.
finite
Not infinite. Finite has an end.
flip
A reflection of a two dimensional shape, a
mirror image of a shape.
focus
Imaginary point used in parabolas, hyperbolas,
and ellipses.
FOIL
A technique for distributing two binomials.
The letters FOIL stand for
First, Outer,
Inner, Last.
First means multiply the terms which occur
first in each binomial, Outer means multiply
the outermost terms in the product, Inner
means multiply the innermost terms, and Last
means multiply the terms which occur last
in each binomial.
formula
An equation that states a rule or a fact.
fraction
A number used to name a part of a group or
a whole. The number below the division line
is the denominator, and the number above the
division line is the numerator.
frequency
The number of times a particular item occurs
in a data set.
frequency table
A data listing which also lists the frequencies
of the data.
function
A set of ordered pairs where each first element
is paired with one and only one second element
and no element in either pair is without a
partner.
Fundamental Theorem of Algebra
Every polynomial equation having complex coefficients
and degree >= 1 has at least one complex
root.
f(x)
The symbol for a function; the way one reads
the symbol for a function with independent
variable x.
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