What innovation helped expand the empire and increase trade?

the graph in the attached figure

step-by-step explanation:

we have

using a graphing tool

the graph in the attached figure

the roots are ( x-intercepts) x=-0.5,x=1,x=3

the y-intercept is the point (0,3)

1) 2/5

2) zero=0/1

3) zero=0/2

4) -4/5

5) undefined=3/0