Hi;

I have the function f(x) = -1/2log(3x - 3) + 5.

I have a table of parent function values x:1/9,1/3,1,3,9 and y:-2,-1,0,1,2.

I'm ok with all transformations eccept when I have an a value less than 1.

I know its vertical compression by a factor of a but how do I apply it to my y values to get new values?

Thanks.