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Download now on Google PlayLet us draw a point in the graph. The point is denoted by \((a,b)\), where \(a\) is the distance along the \(X\) - axis and \(b\) is the distance along the \(Y\) - axis. This pair \((a,b)\) is called as the ordered pair. The ordered pair helps us identify the point correctly.

The \(x\) - coordinate in the ordered pair is called abscissa and the \(y\) - coordinate in the ordered pair is called ordinate.

Here, the ordered pair is \((a,b)\), where \(a\) is the \(x\) - coordinate or the abscissa, and \(b\) is the \(y\) - coordinate or the ordinate.

Example:

Let us draw a point in the graph and name it as \(A\). Here, the ordered pair is \((2,5)\).

The \(x\) - coordinate or the abscissa of the ordered pair is \(2\) units, and the \(y\) - coordinate or the ordinate is \(5\) units.

Important!

The ordered pair \((a,b)\) and \((b,a)\) is not the same.