ALGEBRA GLOSSARY
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Title  Description  

Abscissa  The horizontal axis, or the first coordinate in an ordered pair. 

Absolute Maximum  The highest point on a graph, especially over a specified domain. It is the greatest value of f(x) over a defined interval of x, provided y=f(x). 

Absolute Minimum  The lowest point on a graph, especially over a specified domain. It is the least value of f(x) over a defined interval of x, provided y=f(x). 

Absolute Value  The distance on the real number line between an value and zero. It applies best to things for which negative values have no meaning, such as mass or length. 

Accuracy  The quality of approaching an exact value. Distinct from precision, accuracy means to approach correctness, to tend toward an established value. 

Additive Inverse for Matrices  Mr. X takes the mystery out of Additive Inverse for Matrices, a matrix when added to another equals the Zero Matrix. Subscribe to my youtube channel for more instructional math videos. 

Algebra  The branch of mathematics that allows manipulation of symbols and values to determine quantities that are not always fixed. Variables are essential to algebra. 

Algorithm  A sequence of steps to accomplish a familiar task; a recipe.  
Alpha  The first letter of the Greek alphabet.  
Alternating Series  A series in which successive terms have opposite signs. Every other term is positive; every other term is negative. 

Argument of a Function  The term or expression upon which a function operates. In y=f(x), the argument of the function is x. 

Argument of a Vector  The angle at which a vector is directed. 

Arithmetic Mean  What we generally consider to be the average. The sum of a set of values divided by the cardinal number of the set of values. 

Arithmetic Progression  Also Arithmetic Sequence. A series of terms where successive terms are obtained by addition of a constant. 

Arithmetic Sequence  Also Arithmetic Sequence. A series of terms where successive terms are obtained by addition of a constant. 

Arithmetic Series  Akin to Arithmetic Progressions and Arithmetic Sequences, the series typically reflects an addition operator between terms, as a sum.  
Asymptote  A line (or curve) that a function approaches without actually reaching the line as the domain either grows unbounded or approaches a limit.  
Augmented Matrix  A matrix form for a linear system of equations where the number of columns is one greater than the number of rows, the final column typically coming from the constants in the linear equations. 

Average  Most commonly, average means the arithmetic mean; we sum the values and divide that sum by the number of numbers. The average between two real values is the midpoint between those values. 

Average Rate of Change  The change in value divided by elapsed time.  
Axes  Most simply, the plural of axis. More generally, the horizontal xaxis and the vertical yaxis that comprise the skeleton of Cartesian Coordinates. 

Axiom  Accepted without proof (unlike a theorem), an axiom is readily understood and regarded as fact.  
Axis  In physics, a line about which a body rotates. In mathematics, a line that divides a plane or space into two equal halves, typically demarcated in units. 
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