Answer
$[0,20]×[0,3000]$
Work Step by Step
We are given the function:
$$S(x)=-4.10x^3+67.4x^2-121x+1170, x\geq 0.$$
We graph the function. We notice that the function has a maximum of about $2600$ and a minimum $0$, so the window will have $y$ from $0$ to $3000$.
As $x$ represents the number of years after $1994$, the minimum value of $x$ will be $0$. The maximum value of $x$ is obtained when the graph intersects the $x$-axis (the average salary - $y$- must be positive), so the maximum value of $x$ is about $16$. Therefore the window will have $x$ from $0$ to $20$.
The final window will be $[0,20]\times [0,3000]$.
