An equipment manager at a manufacturing plant uses the quadratic function $f(x) = 2x^2 + 3x - 1$ to estimate the annual maintenance cost (in hundreds of dollars) for a heavy-duty press based on its age in years, $x$. If the manager wants to calculate the estimate for a press that is 3 years old, which of the following expressions correctly demonstrates the first step of substituting the value into the function?

A business operations analyst uses the quadratic function $f(x) = 2x^2 + 3x - 1$ to model projected monthly profit (in thousands of dollars) based on a market performance index $x$. Match each performance index input with its corresponding projected profit result.

A manufacturing supervisor uses the function $f(x) = 2x^2 + 3x - 1$ to model the hourly output of a production line based on its power setting $x$. To calculate the output for a setting of $x = 3$, the supervisor must evaluate $f(3)$. Arrange the following steps in the correct chronological order to complete this evaluation using the standard order of operations.

Procedural Standards for Negative Inputs

When a financial analyst evaluates the projected cost function $f(x) = 2x^2 + 3x - 1$ for an input of $x = -2$, they must substitute the value by placing $-2$ inside parentheses, written as ${}2(-2)^2 + 3(-2) - 1$, to ensure the negative sign is preserved and squared correctly.