Is it 351,591 or is it the other wag around?
The graph continues up off the graph ( indicated by the red arrows.)
This means the domain is all real numbers written as (-∞,∞).
The lowest part of the graph is on Y=1 and the lines curve upwards, this makes the range [1,∞)
The answer to your question is 56
Let the first investment be x
and second be 3000-x
so 3%of x + 4% of (3000-x) = 107
By solving x = 1300
First investment is 1300
second investment is 1700
