SAT Question c1eead73: Nonlinear Functions answer and explanation with Desmos solution

Choice A is incorrect. This would be the value of $g\left(4\right)$ if function $g$ was defined by $g\left(x\right)=-\left|18\right|$, not $g\left(x\right)=\left|x+18\right|$.

Choice B is incorrect. This would be the value of $g\left(4\right)$ if function $g$ was defined by $g\left(x\right)=-\left|x\right|$, not $g\left(x\right)=\left|x+18\right|$.

Choice C is incorrect. This would be the value of $g\left(4\right)$ if function $g$ was defined by $g\left(x\right)=\left|-x+18\right|$, not $g\left(x\right)=\left|x+18\right|$.