HELP PLEASE!! MATH HELP!!!


1. What function equation is represented by this graph?


A. ​ f(x)=20(25)x


B. f(x)=20(35)x


​C. f(x)=20(52)x


D. ​ f(x)=20(53)x ​



2. What function equation is represented by this graph?


​A. f(x)=40(1.5)x


B. ​ f(x)=40(2.5)x


C. f(x)=40(2.25)x


D. ​ f(x)=40(3.25)x


3.

The population of a city is 35,400. The population is expected to grow at a rate of 2% each year.


What function equation represents the population of the city after t years?


A. f(t)=35,400(0.02)t


B. f(t)=35,400(2)t


C. f(t)=35,400(1.2)t


D. f(t)=35,400(1.02)t



4. The ordered pairs model an exponential function, where p is the function name and t is the input variable.


{(1,80),(2,240),(3,720),(4,2160)}{(1, 80), (2, 240), (3, 720), (4, 2160)}