Answer:
graph exponential function using transformations...f (x)=(12)X is reflected about the y-axis and compressed vertically by a factor of 15
Yes it is a function!, all the first numbers are none repeating, for example it says -5,4,6 since they are not the same this is a function
3000000÷1.125=2666666.6667
Round off to 2666667 people.
Feel free to correct this if wrong.