Write a rule to describe each transformation

g(1,-3), h(0,-1), i(2,1), j(4,1)
to
g'(0.25,-0.75), h'(0,-0.25), i'(0.5,0.25),j'(1,0.25)

The lengths of all sides of a triangle are integers when measured in decimeters. one of the sides has length of 1 dm and another of 3 dm. find the perimeter of the triangle.'