Online Math Dictionary: V
Easy to understand math definitions for K-Algebra mathematics
Just scroll down or click on the word you want and I'll scroll down for you!
Variable In Algebra, a variable is the letter in an equation that represents an unknown number.
Examples: 2x + 5 = 7 2x - 3y = 6 |
![red line](/sites/default/files/page_images/reference/line-red.gif)
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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.
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![vectors](/sites/default/files/page_images/reference/dictionary-vector.gif)
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![red line](/sites/default/files/page_images/reference/line-red.gif) |
Vertex On a polygon, the vertices (the plural of vertex) are the corners.
![](/sites/default/files/page_images/reference/dictionary-vertex-1.gif)
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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.
![vextex of a parabola](/sites/default/files/page_images/reference/dictionary-vertex.gif) |
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![red line](/sites/default/files/page_images/reference/line-red.gif)
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Vertical A vertical line is a line that goes up and down... A vertical line isperpendicular to the horizon.
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![vertical line](/sites/default/files/page_images/reference/dictionary-vertical.gif)
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