The percent of usage of the word judgment in books can be modeled with an exponential decay curve. let p be the
percent as a function of x, and let x be the number of years after 1900; then, p(x) = 0.0 220 465 ⋅ e^−0.0 079 941x.
a. according to the model, in what year was the usage 0.1% of books?
b. when does the usage of the word judgment drop below 0.001% of books? this model was made with data
from 1950 to 2005. do you believe your answer is accurate? explain.
c. find pp−1. what does the domain represent? what does the range represent?