What would A, B, and C be

On a piece of paper graph f(x)=5•(0.4)^x

Find the slope of the line that contains the following points. r(-2, 4), s(6, -2)

What is true about the dilation? it is a reduction with a scale factor between 0 and 1. it is a reduction with a scale factor greater than 1. it is an enlargement with a scale factor between 0 and 1. it is an enlargement with a scale factor greater than 1.