# Math Dictionary wxyz

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W

Week : A time period of 7 days.

Whole : All of something. Complete.

Whole Number : The numbers {0, 1, 2, 3, ...} etc.
There is no fractional or decimal part. And no negatives.

Width : The distance from side to side.

X

x : This is used as a variable in Algebra.

X-axis : One of the two intersecting lines used to establish the coordinates of points in the Cartesian plane; in that plane, the line whose equation is
y = 0; in space the axis perpendicular to the yz-plane.

X-coordinate : The first coordinate in any (x,y) ordered pair; the number represents how many units the point is located to the left or right of the y-axis; also called abscissa.

X-intercept : The point at which the graph of a relation intercepts the x-axis. The ordered pair for this point has a value of y = 0.

Y

Y-axis : It is the vertical line.One of the two intersecting lines used to establish the coordinates of points in the Cartesian plane; in that plane, the line whose equation is x = 0; in space the axis perpendicular to the xz-plane.

Y-coordinate : The second coordinate in any (x,y) ordered pair; the number represents how many units the point is located above or below of the x-axis; also called ordinate.

Y-intercept : The point at which a graph of a relation intercepts the y-axis. The ordered pair for this point has a value of x = 0.

Year : A period of time in which the Earth makes a complete revolution around the sun.
There are 365 days in a normal year and 366 days in a leap year.

Z

Z-axis : A line perpendicular to the plane determined by the x-axis and y-axis at their point of intersection; this axis is used as a reference to determine the third component of the ordered triple (x, y, z).

Z-coordinate : The third coordinate in any (x,y,z) ordered triple; the number represents how many units the point is located above or below of the xy-plane.

Zero : The whole number between -1 and 1, with the symbol 0.Shows that there is no amount.

Zero (of a function) : Where a function equals the value zero (0).
Also called "root".

Zero product property : If a and b are real numbers, then ab = 0
if and only if a = 0 or b = 0, or a and b = 0.

Math dictionary wxyz

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