SAT Question 78d5f91a: Nonlinear Functions answer and explanation with Desmos solution

Choice A is incorrect and may result from correctly substituting $-1$ for $x$ in the function but incorrectly simplifying the resulting expression to $f(-1)=-1-3-6-1$, or $-11$.

Choice B is incorrect and may result from arithmetic errors.

Choice D is incorrect and may result from correctly substituting $-1$ for $x$ in the function but incorrectly simplifying the expression to $f(-1)=1+3+6+1$, or $11$.