Assume y varies inversely as x, how do you write the equation given y=-6 when x=-3?
With x = -3 and y = -6 we have:
=> k = 18
This sounds like inverse proportionality.
The standard writing for such a formula is:
Given the information, y = -6 when x =-3, we can find the constant "k".
Now we know "k", we write the formula that sitifies y = -6 when x = -3 as