F

Face (of prism) Any one of the flat sides of a solid

Face Any surface that forms a side or base of a prism.

Faces of a polyhedron   The parts of planes that make up the sides and bases of a polyhedron.

Factor Any of two or more whole numbers that are multiplied to form a product.

Factorial The expression n! is the product of all counting numbers beginning with n and counting backwards to 1.

Factoring a polynomial   Rewriting a polynomial as a product of two or more polynomials of lesser degree.

Factoring Writing a number as the product of two or more factors

Fahrenheit A temperature scale used on thermometers, on which the freezing point of water is 32° and the

boiling is 212°

Field The elements within each record of a computer data base file.

File A collection of data within a computer data base about a particular subject.

Finite set A set in which we can count the number of elements

Formula A statement of a mathematical relationship

Fraction A number written in the form a/b where a is an element of the set of  {0, 1, 2, 3,…}, and  b is an element

of the set of  {1, 2, 3,…}

Frequency   The number of times that one item appears in a set of data.

Frequency distribution   A table that pairs each item in a set of data with its frequency.

Frequency polygon   A line graph of frequencies, connected to the horizontal axis at each end to form a polygon.

Function   A set of ordered pairs in which no two different ordered pairs have the same x-coordinate.

Fundamental Counting Principle If there are m ways of selecting an item from set A and n ways of selecting an

item from set B, then there are m x n ways of selecting an item from set A and an item from set B.

Fundamental theorem of arithmetic Every composite number can be expressed as the indicated product of prime

factors in one and only one way, except for the order of the factors