Question

if y varies inversely as x, find the constant of variation if y=5 when x=-1
a.-5
b.5
c.-2
d.2

if y varies inversely as x, find the constant of variation if y=3 when x=-2
a.5
b.-5
c.-3/2
d.-6

Answer 1

if \(y\) varies inversely as \(x\), the constant of variation (\(k\)) is given by: \(\color{green}{k=x\times y}\)

Answer 2

just multiply x and y to get the answer

Answer 3

thanx @PaxPolaris