1.Double-click on the axis.
2.In the Properties dialog box of the axis, click on the Scaling tab.
3.As the Axis type, select Linear, number of divisions.
4.Select the options Extend start value to previous full division or by 10 % and Extend end value to next full division or by 10 %.
5.In the Division origin list box, select equal to start value.
6.As the Number of division intervals enter 1.
Note: If you want the axis to be labeled with the exact minimum and maximum of the curve, under Scaling you will need to select Data minimum/maximum as the Start value/End value and enter the value 0 in the Significant digits field.