Question

Suppose that y varies inversely with x. Use the information to find k, and then choose the equation of variation.x = 2

when y = 11.

a) k=2/11, y=2/11x
b) k=22, y=22/x
c) k=11/2, y=11x/2
d) k=11/2,y=11/2x

Answer 1

Since the product of variables in inverse proportion is constant, the equation is
`xy=22`

Dividing both sides by x, we get:

`\boxed{y=(22)/(x)} \longrightarrow k=\boxed{22}`