Question

Y is inversely proportionsl to x. when y = 7, x = 9. work out aan equation connecting x and y.

Answer 1

y =
`(63)/(x)`

Explanation:

Since y is inversely proportional to x the equation relating them is

y =
`(k)/(x)` ← k is the constant of proportionality

To find k use the condition when y = 7, x = 9

k = yx = 7 × 9 = 63

y =
`(63)/(x)` ← equation connecting x and y