Question

Function Table
X. Y
0.5. 2
1. 1
2. 0.5
4. 0.25
5
10

What is the function rule that represents the relationship between x and y.

Answer 1

looks like y = 1/x

Answer 2

And, to add to Steve's response, if it is y=1/x, then the product of xy is = 1.

Is xy a constant?