SAT Question 27198699: Linear Functions answer and explanation with Desmos solution

Choice A is correct. It's given that the function $f\left(x\right)=33-0.18x$ gives the estimated height, in centimeters (cm), of the liquid in the container $x$ days after the start of the project. For a linear function in the form $f\left(x\right)=a+bx$, where $a$ and $b$ are constants, $a$ represents the value of $f\left(0\right)$ and $b$ represents the rate of change of the function. It follows that in the given function, $33$ represents the value of $f\left(0\right)$. Therefore, the best interpretation of $33$ in this context is the estimated height, in cm, of the liquid at the start of the project.