SAT Question 79ba511a: Nonlinear Functions answer and explanation with Desmos solution

Choice A is incorrect and may result from conceptual or calculation errors.

Choice B is incorrect. This is the value of $f\left(2\right)$ when $f\left(x\right)=x\left(3\right)+15$, rather than $f\left(x\right)=x^3+15$.

Choice D is incorrect and may result from conceptual or calculation errors.