Determine the constant of variation for the stated condition.
-$y = 0.4$ when $x = 0.8$
A) $y = 0.5 x$
B) $y = 0.4 x$
C) $y = x - 0.4$
D) $y = 2 x$

Question

Quizplus · Accepted Answer

The constant of variation, $k$, in a direct variation $y = kx$ can be found by solving for $k$ using the given values of $x$ and $y$. Here, $0.4 = k \times 0.8$, solving for $k$ gives $k = 0.5$, which matches option A: $y = 0.5 x$.

Determine the Constant of Variation for the Stated Condition y=0.4y = 0.4y=0.4

Determine the Constant of Variation for the Stated Condition $y = 0.4$