This has already been asked and answered in many previous postings that you may want to review...However, since this isn't the case...
There are 3 monorail routes: Resort Monorail, Express Monorail and the EPCOT Monorail. Several monorails run each route. The Resort and Express Monorails circle 7 Seas Lagoon.
Resort Monorail: runs clockwise from the TTC with stops at the Poly, GF, MK and CR before returning to the TTC.
Express Monorail: runs counterclockwise directly from the TTC to the MK and return - no resort stops.
EPCOT Monorail: runs from the TTC to EPCOT and returns to the TTC.
Switch from the MK monorails to go to EPCOT at the TTC Monorail station.
If you are staying at the Poly and want to go to EPCOT, simply walk east to the TTC and board the EPCOT monorail- faster than going through all the stops to get to the TTC using the Resort Monorail that serves the Poly.