The number of decibels, d, produced by an audio source can be modeled by the equation d = 10 log(5)

where I is the sound intensity of the audio source and

K is a constant. How many decibels are produced by an

audio source whose sound intensity is 1,000 times the

value of K?

4.

F.

G. 30

H. 40

J. 100

K. 10.000

Identify the graph of y = ln x + 1.

Which expression is rational? 6. , square root two, square root 14, square root 49

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.