This sample uses an inverse axis in a chart to plot an exchange rate over a period of time.
In this example, you can see how to invert the axis of the chart. Here, both X and Y axis are inverse by setting the isInversed property in axis to true. Tooltip is enabled in this example, to see the tooltip in action, hover a point or tap on a point in touch enabled devices. More information on inversed axis can be found in this documentation section.