A 10-ft bar of I-beam weighs 209 lb. What is the weight of a 11-ft length? The weight of a 11-ft bar is Ib.
(Type a whole number or a decimal.)

Create a question with this scenario you could ask that could be answered only by graphing or using logarithm. 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.