Question

Y varies inversely with x and y = -12 when x = 6.
A. xy = -2
B. xy = -72
C. xy = -0.5

Answer 1

xy = -72

Answer 2

\[y \alpha \frac{1}{x}\]
\[y = \frac{k}{x}\]
find K by subsitituiting the values of x and y in this equation
k=12(-6) = 72