Question

Complete the equation of variation where y varies inversely as x and y = 0.125 when x = 8.

Answer 1

"equation of variation where y varies inversely as x"
\[y=k\frac{ 1 }{ x }\]
"and y = 0.125 when x = 8"
\[(0.125)=k\frac{ 1 }{ (8) }...multiply.both.sides.by.8\]\[(8 \times 0.125)=k \]