SAT Question e62cfe5f: Linear Functions answer and explanation with Desmos solution

According to the model, the head width, in millimeters, of a worker bumblebee can be estimated by adding $0.6$ to $4$ times the body weight, in grams, of the bee. Let $x$ represent the body weight, in grams, of a worker bumblebee and let $y$ represent the head width, in millimeters. Translating the verbal description of the model into an equation yields $y=0.6+4x$. Substituting $0.5$ grams for $x$ in this equation yields $y=0.6+4\times 0.5$, or $y=2.6$. Therefore, a worker bumblebee with a body weight of $0.5$ grams has an estimated head width of $2.6$ millimeters. Note that 13/5, 2.6, and 2.60 are examples of ways to enter a correct answer.