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variable a letter that stands for a number or a range of numbers
VARIABLE a letter that stands for an unknown value
Variance  The mean value of the squares of the deviations from the mean of the data.
VERTEX (VERTICES) OF A POLYGON point (s) where two sides of a polygon meet
VERTEX OF AN ANGLE common endpoint shared by two rays
Whole number   Any number that is not a fraction. (Example: 0, 1, 2, 3, 7 and 12 are whole numbers, 4 3/4 is not.
X-intercept  The point where a graph crosses the x-axis.
Y-intercept  The point where a graph crosses the y-axis.
Zero  The x-values that make an expression have a zero value. Same as roots and x-intercept.

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