SAT Question 1c29bfd1: Linear Functions answer and explanation with Desmos solution

Choice A is correct. It's given that the pressure exerted on a scuba diver at sea level is $14.70$ pounds per square inch (psi). It's also given that for each foot the scuba diver descends below sea level, the pressure exerted on the scuba diver increases by $0.44$ psi. The total pressure, in $\text{psi}$, exerted on the scuba diver at $x$ feet below sea level can be represented by the expression $0.44x+14.70$. Substituting $105$ for $x$ in this expression yields $0.44(105)+14.70$, or $60.90$. Therefore, the total pressure exerted on the scuba diver at $105$ feet below sea level is $60.90$ psi.