SAT Question f1fa0821: Nonlinear Functions answer and explanation with Desmos solution

Choice B is correct. On the graph shown, the y-axis represents estimated population, in thousands. The graph shows that when $x=0$, the y-coordinate is $6$. Therefore, the estimated population at $x=0$ is $6$ thousand. The graph also shows that when $x=1$, the y-coordinate is $9$. Therefore, the estimated population at $x=1$ is $9$ thousand. Dividing $9$ thousand by $6$ thousand yields $1.5$; therefore, $9$ thousand is $1.5$ times $6$ thousand. It follows that the estimated population at $x=1$ is $1.5$ times the estimated population at $x=0$.