Raster Analysis tasks that honor the geographic property in their context parameter will use the transformation methods when projecting the data for analysis.
Datum transformations are available for projecting spatial data from one geographic coordinate system to another. For a complete list of supported transformations, including WKIDs and WKTs, see Using spatial references.
Geographic Transformations syntax:
{"geographicTransformations": "WGS_1984_To_NTF_NTv2"}A task will only use transformations appropriate to the projection, ignoring all others.