When the user asks a question and it's picked up by the Intent on the main page... how do i jump to a specific node in other workflows?

You need to set a User variable (user.xxx = "true") when Intent is picked up. Then use a transition card at the beginning node of the new Workflow to direct them to the correct starting node if this user variable = true. Its similar to the way you can stop greeting customers everytime they come back to the chatbot by saying "if greeting = true", skip to next node. Or you could just duplicate the workflow