How do I get a dropdown field only to show when a certain answer is chosen from a previous dropdown?

So I have a dropdown with several choices.  I want to make it so that if one particular answer is chosen from that dropdown, then a new dropdown will appear with more questions regarding that choice they made. It's a dropdown that wouldn't ordinarily be there. 

Is that possible? If so, how?

I am providing a link from a website's form.  It does exactly the behavior that I need. 

When selecting the "Appraisal Purpose" and choosing "Tax Appeal" as your selection, a new field (Tax Year) appears. 

Thank you!

What you are trying to accomplish is possible using SHOW/HIDE FIELD conditional logic — Smart-Forms-Using-Conditional-Logic

And here's a direct link that you can use as a reference to create the condition that will show field(s) in your form based on another field's answer — How-to-Show-or-Hide-Fields-Base-on-User-s-Answer

Here's a sample form that I created — https://form.jotform.com/80616434369966

Here's the condition in that form

I hope this helps. If you have other questions or concerns, please do not hesitate to let us know.

That did it!  Thank you!