Explain how a person can determine if a set of data represents inverse variation and give an example using a table of values.
y varies inversely with x, means `y=k/x`
We can rewrite the above as xy=k, where k is a constant. Thus given a table of values, if every time we multiply x by it corresponding y, we get the same constant, then we have an inverse variation.``
x y xy
1 60 60
2 30 60
3 20 60
4 15 60