Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
How many opponents were there for the game recorded as 6-4 in the Atlanta Falcons 1978 season?

### Inputs:
table_name: table, columns: ['Game', 'Date', 'Opponent', 'Result', 'Falcons points', 'Opponents', 'Record', 'Attendance']

### Response:
SELECT COUNT Opponents FROM table WHERE Record = 6-4