Answer:
see below
Step-by-step explanation:
Well there are two main reasons
1. exponential functions don't have a negative value, i mean
2. well exponential functions are like a curve, the firsts values are very close to each other, but then they start jumping like mad (translate it to your own words), for example in
the first positive values are
1,2,9 but then 16,25,36,49