# 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 three-sided 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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