Vertical Line Test:Function or Not

[@TheSixWingedSeraphim]

Thanks!

[@surendrakverma555]

Very good. Thanks 🙏

[@naveensingh5787]

how to identify from given equation of function ,if it is one one ,many one etc

[@colinrobert-kv2up]

Segment of y as move on line at a glanse of 1:100, cm. Vertical SPD is time.

[@colinrobert-kv2up]

Unity is any distribution of cos,sin segment. I use 15 on y line read degree 180s. Up y Axis.