SAT Question bd9eb2b5: Linear Functions answer and explanation with Desmos solution

Choice A is incorrect. This is the value of $x$ for which $f\left(x\right)=64$, not $f\left(x\right)=72$.

Choice C is incorrect. This is the value of $x$ for which $f\left(x\right)=512$, not $f\left(x\right)=72$.

Choice D is incorrect. This is the value of $x$ for which $f\left(x\right)=640$, not $f\left(x\right)=72$.