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Glossary
Basic Math
Pre-Algebra
Algebra
Trigonometry
Precalculus
Calculus
Math Glossary
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variable:
A letter used to represent a number value in an
expression
or an
equation
.
vector:
Quantity
that has magnitude (length) and direction. It may be represented as a directed line
segment
.
Venn Diagram:
A Venn
diagram
is often two
circles
(can be other shapes) that overlap. The overlapping part usually contains information that is pertinent to the labels on both sides of the Venn
diagram
.
vertex:
The
point
on an
angle
where the two sides
intersect
.
vertical:
Perpendicular
to
horizontal
; up and down as opposed to left and right.
vertical angles:
A pair of opposite
angles
that is formed by intersecting lines.
vertical line test:
A way of testing a graphed relation to determine if it is a
function
.
vertically opposite angles:
Two
angles
formed by the
intersection
of two lines. They share a common
vertex
but no sides or interior
points
.
voltage:
Commonly used as a short name for electrical potential
difference
. Its corresponding SI
unit
is the volt (symbol:
V
).
volume:
A measurement of space, or
capacity
.
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