The symbol for the arithmetic mean (average) of a group of numbers. The pronunciation is 'x bar'. If the set of numbers can be represented by (2, 3, 4, 4, 5), then the mean = (2+ 3+ 4+ 4+ 5)/5 = 3.6. So xbar = 3.6.
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The point where a line crosses the x-axis is called the x-intercept.
(x,-y)
On a graph, you will have a vertical numbered line and a horizontal numbered line. The vertical one is called the "y-axis" and the horizontal is the "x-axis." You are either looking for a line, shape, or arc that touches, or "intercepts" on the x-axis (horizontal line).
A line over a whole number means that number repeats for an infinite number of times.
when it is a parallel line across the x and y axis