Given the values of $x$ and $y$, find an equation of variation in which $y$ varies directly as $x$.
-$y=80$, when $x=290$
A) $y=3.63 x$
B) $y=80 x$
C) $y=0.28 x$
D) $y=0.38 x$

Question

Quizplus · Accepted Answer

In direct variation, $y = kx$. Given $y = 80$ when $x = 290$, solve for $k$: $80 = k \times 290$, so $k = \frac{80}{290} \approx 0.28$. Thus, the equation is $y = 0.28x$.

Given the Values Of xxx And yyy , Find an Equation of Variation in Which

Given the Values Of $x$ And $y$ , Find an Equation of Variation in Which