Answer: y = 63/x
Explanation:
This is variation, now to the question.
y <> 1/x --------------------1
the <> is called the constant of proportionality, which will now be replaced by a constant (k)
y = k/x ------------------- 2
Given that y = 7 and x = 9, we now find k , then use it to form an equation to connect y and x.
Back to 2
7 = k/9, therefore
K = 63. Now put thus back in equation 2
y = 63
---
x
Therefore, the equation connecting y and x is
y = 63/x.