If y varies directly as x, find the direct variation equation for the situation.
-$$y = 7 \text { when } x = 14$$
A) $y = \frac { 1 } { 2 } x$
B) $y = \frac { 1 } { 7 } x$
C) $y = 2 x$
D) $y = x + 7$

Question

Quizplus · Accepted Answer

The direct variation equation is of the form $y = kx$, where $k$ is the constant of variation. Given $y = 7$ when $x = 14$, we find $k = \frac{7}{14} = \frac{1}{2}$, so the equation is $y = \frac{1}{2}x$.

If Y Varies Directly as X, Find the Direct Variation y=7 when x=14y = 7 \text { when } x = 14y=7 when x=14

If Y Varies Directly as X, Find the Direct Variation $y = 7 \text { when } x = 14$