What best determines whether a borrower's interest rate on an adjustable rate loan goes up or down is: A market's condition.
Market condition
Market condition tend to have impact interest rate or determining whether borrower's interest rate on an adjustable rate loan goes up or down.
Reason being that market condition help to determine the current state of an economy at a specific period of time.
In order to determine if the interest rate will either increase or decrease the current market condition has to be put into consideration because it have great influence on interest rate.
Inconclusion What best determines whether a borrower's interest rate on an adjustable rate loan goes up or down is: A market's condition.
Learn more about market's condition here:https://brainly.com/question/15176320
