Can someone walk me thru doing logarithmic regression?

Question

Hi, I would like to estimate some points by using log regression. For a matter of example, the dependent data points are 74,62,49,36,34,30....whats the next point based on log and how do I calculate it? What is the formula?

You can use 1,2,3 for the independent variable. I need to find out how to arrive at the equation in the form, y= a ln(bx) using the set of numbers given

Answer 1

The data points supplied are not sufficient. You need point pairs
For example
(74, ?) or (?,74)
(62, ?) or (?,62)

and so on

Let's assume that you have a function

y=a/ln(bx)

If you find a and b then you have the solution .
For that you need to use y=74 and a corresponding value of x