Suppose that y varies inversely with x. Use the information to find k, and then choose the equation of variation. x=1.2 when y=3

Question

It is junior level algebra and it is the topic of inverse variations.

Answer 1

let y = k/x

when x=1.2, y=3

so 3=k/1.2

k=3.6

so y=3.6/x