What is the exponential function graphed in the figure? A. f(x) = 2(1/2)x
B. f(x) = 6(1/2)x
C. f(x) = 6(1/4)x
D. f(x) = 2(1/4)X

David estimated he had about 20 fish in his pond. a year later, there were about 1.5 times as many fish. the year after that, the number of fish increased by a factor of 1.5 again. the number of fish is modeled by f(x)=20(1.5)^x. create a question you could ask that could be answered only by graphing or using a logarithm.