The percent of a country's households with broadband Internet access can be modeled by the function f left parenthesis x right 0.11 x squared plus 6.51 x plus 3, where f left parenthesis x right parenthesis is the projected percent of households with broadband Internet access and x is the number of years since 2000. a. Will this function have a maximum or a minimum? How can you tell?

b. According to this model, in what year will the percent of homes with broadband Internet access be at its maximum or minimum?

c. What is the predicted maximum/minimum percent of homes with broadband Internet access?