Idk have a clue and i need the answer fast plz help!!

check out this link:

http://education.ti.com/calculators/timathnspired/US/Activities/Detail?sa=5022&t=5025&id=11977

but in general lets say we consider linear function y1=ax+b and exponential y2=e^x

the rate of the function is its derivative:

y1'=a (constant rate) y2'=e^x (rate is getting bigger in time)