Quadratic Inequality Application |
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The function models the annual unemployment percentage rate for the Phoenix-Mesa-Scottsdale area from the beginning of 2008 through the end of 2014, where represents the number of years since 2008. |
a) Use a graphing method to determine the years in which the unemployment rate was greater that 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 above 8.5% starting in year and ending in the year |
b) Use a graphing method to determine the years in which the unemployment rate was less than 7% 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 7% starting in year and ending in the year as well as starting in the year and ending in the year |