Online Math Dictionary: V
Easy to understand math definitions for KAlgebra mathematics
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Variable In Algebra, a variable is the letter in an equation that represents an unknown number.
Examples: 2x + 5 = 7 2x  3y = 6 

Vector A vector is a ray that has a magnitude (length) and a direction (which way it's pointing.) Vectors are used a lot in physics and navigation.




Vertex On a polygon, the vertices (the plural of vertex) are the corners.

In a parabola, the vertex is the starting point. The line that cuts the parabolain half (the axis of symmetry) goes right through the vertex.



Vertical A vertical line is a line that goes up and down... A vertical line isperpendicular to the horizon.


