SAT Question 7f2524bf: Nonlinear Functions answer and explanation with Desmos solution

Choice A is correct. It's given that the graph shown gives the estimated value $y$, in dollars, of a tablet as a function of the number of months since it was purchased, $x$. The y-intercept of a graph is the point at which the graph intersects the y-axis, or when $x$ is $0$. The graph shown intersects the y-axis at the point $\left(0,225\right)$. It follows that $0$ months after the tablet was purchased, or when the tablet was purchased, the estimated value of the tablet was $225$ dollars. Therefore, the best interpretation of the y-intercept is that the estimated value of the tablet was $$225$ when it was purchased.