Refer to the information provided in Figure 7.9 below to answer the question(s) that follow. 
Figure 7.9
-Refer to Figure 7.9. The slope of isocost AB is
Definitions:
Account Changes
Adjustments made to accounts to update or correct their balances, which might include error corrections, adjustments, or updates.
Expanded Accounting Equation
Assets = Liabilities + Capital – Withdrawals + Revenue – Expenses.
Owner's Equity
The residual interest in the assets of an entity after deducting liabilities, representing the ownership interest of the owners.
Ledger
A comprehensive collection of a company's accounts, where transactions are recorded in detail.
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