The function U(t) = -0.338t +1.807t +6.545 modets the annual unemployment percentage rate for the Phoenix-Mesa-Scottsdale...

 

Transcribed Image Text:

The function U(t) = -0.338t² +1.807t +6.545 modets the annual unemployment percentage rate for the Phoenix-Mesa-Scottsdale area from the beginning of 2008 through the end of 2014, where t represents the number of years since 2008. a) Use a graphing method to determine the years in which the unemployment rate was greater that 7.25% Write your answer in interval notation rounding to one decimal place. Complete the following sentence using the information from your graph. The unemployment rate was above 7.25% starting in year year b) Use a graphing method to determine the years in which the unemployment rate was less than 8.5% Write your answer in interval notation rounding to one decimal place. Complete the following sentence using the information from your graph. The unemployment rate was below 8.5% starting in year year as well as starting in the year and ending in the and ending in the and ending in the year The function U(t) = -0.338t² +1.807t +6.545 modets the annual unemployment percentage rate for the Phoenix-Mesa-Scottsdale area from the beginning of 2008 through the end of 2014, where t represents the number of years since 2008. a) Use a graphing method to determine the years in which the unemployment rate was greater that 7.25% Write your answer in interval notation rounding to one decimal place. Complete the following sentence using the information from your graph. The unemployment rate was above 7.25% starting in year year b) Use a graphing method to determine the years in which the unemployment rate was less than 8.5% Write your answer in interval notation rounding to one decimal place. Complete the following sentence using the information from your graph. The unemployment rate was below 8.5% starting in year year as well as starting in the year and ending in the and ending in the and ending in the year