if there is inverse variation y=-5 when x=2, find y when x=-6

1 answer

In inverse variation, we can express the relationship between \( x \) and \( y \) using the equation:

\[ xy = k \]

where \( k \) is a constant.

Given that \( y = -5 \) when \( x = 2 \), we can find \( k \):

\[ k = xy = (2)(-5) = -10 \]

Now we need to find \( y \) when \( x = -6 \). We use the value of \( k \) we just calculated:

\[ xy = k \quad \Rightarrow \quad (-6)y = -10 \]

To solve for \( y \), divide both sides by -6:

\[ y = \frac{-10}{-6} = \frac{10}{6} = \frac{5}{3} \]

Thus, when \( x = -6 \), \( y = \frac{5}{3} \).