Looks like $ZM is going to test the 50 and 200 Day MA as its support line, instead of the yellow channel trend line that it unfortunately did not hold above.
But since the 50 and 200 Day MA are exactly at each others level, this may be a more important confluence well as they intersect each other and most importantly, watching the 50 Day MA moving up from below, as we know is a bullish indication.
Still more work for $ZM to do and its not until this can hold above the yellow trend line at $72 can we rest more easy and confirm its upward trajectory.