Question

If y varies inversely as x, find the constant of variation if y = 3 when x = -2.

Answer 1

\[y =\frac{ k }{ x },where k is constant.\]
when x=-2,y=3
\[3=\frac{ k }{ -2 },k=-2\times3=-6,

Answer 2

\[3=\frac{ k }{ -2},k=-2\times3=-6\]