Cable Television The average monthly cost in dollars) of cable television from 1995 to 2001 can be modeled by the function
f(x) = 1.56x + 21.5 where x is the number of years since 1995.
a. Graph the function. What are its domain and range?
Domain:
Range:
b. Find the value of x so that f(x) = 28. Explain what the
solution means in this situation.