How to hide Constant y-axis value when the value is blank

[aarnol18]

I have a line chart with some constant Y-axis values. I filter the line chart to different categories and everything updates appropriately.

However not every category has a value tied to it, some are blank. In these situations, the constant line is showing at the 0% mark rather than being blank. Is there anyway to just hide it instead? or make it transparent? 

75th = SELECTEDVALUE(tbl[National75th])

[ryan_mayu · Accepted solution]

maybe you can try to create a measure 

if (xxx=0, blank(), xxx)

then it will skip the 0 value.