Question

Assume that y varies inversely with x. If y=9 when x=7, find y when x=2.

Answer 1

Answer:1.56

Explanation:

For constant of proportionality of k,

y=(1/k)*x

If y =9,

9=7/k

K=7/9=0.78

y=0.78x

y=0.78*2=1.56

When x