Answer:
To record William's purchase of a car for $4,000 at Auto Cars Inc. on October 1, the following accounts would be debited and credited:
Debit: The Cash account would be debited to reflect the increase in cash due to the sale.
Credit: The Sales Revenue account would be credited to recognize the revenue generated from the sale of the car
1
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This transaction involves debiting Cash to show the inflow of cash from the sale and crediting Sales Revenue to account for the revenue earned from the transaction.