SAT Question 4e18fc5d: Nonlinear Equations In One Variable And Systems Of Equations In Two Variables answer and explanation with Desmos solution

Choice A is correct. It's given that $x$ is positive. Therefore, multiplying each side of the given equation by $-150x$ yields $-150xv=w$, which is equivalent to $w=-150vx$. Thus, the equation $w=-150vx$ correctly expresses $w$ in terms of $v$ and $x$.