Slaughter scored 18 points and Smith added 17 for the Cardinals (29-8), who rallied from a 10-point halftime deficit to land in their second NCAA Woman's Tournament championship game in five years.
They will play UConn in Tuesday's title tilt. The Huskies bounced Notre Dame in Sunday's late national semifinal.
The Golden Bears (32-4) were led by Layshia Clarendon with 17 points.
The Louisville men's team will face Michigan for an NCAA championship Monday. Louisville became the first college since Connecticut in 2004 to have both teams reach their respective title games in the same year.