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quadratic word problems notebook february 26 2020 quadratic word problems the path of a kicked football is shown in the graph below answer the following questions and then write an ...

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   Quadratic Word Problems.notebook            February 26, 2020
                  Quadratic Word Problems
       The path of a kicked football is shown in the 
       graph below.  Answer the following questions 
       and then write an equation representing the 
       graph. 
      a) What is the maximum 
      height the football reaches?
                          ft
                       Height (h) 
      b) When will the ball reach 
      its maximum? 
                                      time (t) 
      c) When will the ball hit the 
      ground? 
                                      seconds
                                                           1
   Quadratic Word Problems.notebook           February 26, 2020
                  Quadratic Word Problems
                  Average Rate of change
       Average
                     =
                                       =
       rate of change
       Find the average rate of change for 
              2
       f(x) = x  + 2x ­ 5 on the interval [­1, 3]
                                                         2
    Quadratic Word Problems.notebook                                February 26, 2020
                          Quadratic Word Problems
         The number of bacteria in a refrigerated food is given  by 
                   2
         N(t) = 20t  ­ 20t + 120, for ­2 ≤ t ≤ 14 and where t is the temperature of the 
         food in Celsius. 
        a) At what temperature will the number of bacteria be minimal? 
         b) What is the minimum number of bacteria? 
         c) What is the average rate of change from ­2 < t < 14?
                                                                                     3
    Quadratic Word Problems.notebook                                February 26, 2020
                          Quadratic Word Problems
         The value of Jennifer's stock portfolio is given by the function 
                           2
         v(t) = 50 + 73t ­ 3t  , where v is the value of the portfolio in hundreds of 
         dollars and t is the time in months. 
        a) How much money did Jennifer start with?
         b) What will the value of her portfolio be at its maximum? 
        c) What is the average rate of change from [0, 5]
                                                                                     4
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...Quadratic word problems notebook february the path of a kicked football is shown in graph below answer following questions and then write an equation representing what maximum height reaches ft h b when will ball reach its time t c hit ground seconds average rate change find for f x on interval number bacteria refrigerated food given by n where temperature celsius at be minimal minimum from...

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