Functions and Function Notation · Exercise 8

ⓐ Use the following description to build a function called $f\left(x\right)$. "An input value is squared, multiplied by $-2$ and added to $3$.”
$f\left(x\right)=$
ⓑ Create a table of input/output values for $f\left(x\right)$ below. Show three numerical input values and one variable input value, and the corresponding output values in your table.
$$\begin{array}{cc}x& f\left(x\right)\\ & \\ & \\ & \\ & \end{array}$$

Its source prints no answer for this problem, so there's nothing to check against.

OpenStax, Algebra and Trigonometry 2e · §3.1 Functions and Function Notation · Exercise 8