The following Excel scatterplot with the fitted quadratic regression equation illustrates the observed relationship between productivity and the number of hired workers. 
Which of the following is the predicted productivity when 32 workers are hired?
Definitions:
Compound Interest
Interest earning mechanism in which the calculation includes interest on the original principal and on all previously earned interest of a loan or deposit.
Present Value
Present Value is the current worth of a future sum of money or stream of cash flows given a specified rate of return.
Earnings Rate
The return on an investment or project expressed as a percentage of the cost, often used to measure profitability.
Present Value Factor
A multiplier used to determine the present value of a future cash flow, taking into account a specific discount rate.
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