BASIC ALGEBRA GLOSSARY
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Title  Description  

Tangent Line  A Line is said to be Tangent to a function when it touches the graph of the function at a single point. 

Tau  Tau is the 19th letter of the Greek alphabet. 

Term  In most mathematical expressions a single Term is isolated from other Terms by plus or minus signs. A Term is the same as a Monomial, in casual mathematical language. More strictly, a Term is a Monomial with no coefficient. 

Tessellate  A planar pattern of repeating geometric shapes is a Tessellation; to produce these shapes is to Tessellate. 

Third Quartile  For certain types of data, it is the 75th percentile. Also high quartile or upper quartile. 

Three Dimensions  The Dimensions of space or volume are Three Dimensions, typically labeled with rectangular, spherical, or cylindrical coordinates. 

Transitive Property  The Transitive Property is exhibited when three values are related in the following manner: If A = B and B = C, then A = C. The relation need not be equality. 

Transversal  A line that crosses two or more parallel lines is often termed a Transversal. 

Triangle  A threesided polygon. Triangles are either acute, right, or obtuse. 

Trinomial  A polynomial with three terms.  
Triple  As a verb, Triple means to multiply by three. As a noun, the result from multiplication by three. 

Truncation  Replace the lesser digits of some number with zeros with no regard for rounding; this is Truncation. 

Two Dimensions  A plane has Two Dimensions. Planar figures are Two Dimensional. 
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