CREATE TABLE table_204_9 (id DECIMAL, "week" DECIMAL, "date" TEXT, "opponent" TEXT, "result" TEXT, "attendance" DECIMAL)

first home opponent for the dolphins in the season
SELECT "opponent" FROM table_204_9 WHERE "opponent" = 'home' ORDER BY "date" LIMIT 1
SELECT "opponent" FROM "table_204_9" WHERE "opponent" = 'home' ORDER BY "date" NULLS FIRST LIMIT 1