Hi,
Manipulated Y-axis means the unnecessary extention of the scales on Y-axis. For example, if you have macimum data value as 100 but still you are extending your Y-axis upto 200 then it is considered as manipulated Y-axis.
In the above figure, breaks (two slant lines) are introduced in the graph and hence it is not a misleading graph.
Regards,
Mayur,
Content Support Team,
IITM Onlinedegree