The number of millions of people in a certain country who li
     The number of millions of people in a certain country who lived below the poverty level tor the year can be modeled by y = 0.007x^2 - 0 436x + 38.968 where x is the number of years after 1990  Is the vertex of the graph of this function a maximum or a minimum?  Find the coordinates of the vertex and interpret them m the context of the problem  Use the vertex to set the window and graph the model.  The vertex of the graph of this function is a  The input at the vertex is x =  (Round to the nearest tenth as needed)  The output at the vertex is y =  (Round to the nearest tenth as needed)  Choose the correct interpretation of the vertex  The number of millions of people who lived below the poverty level was a minimum of 32.2 in 2021.  The number of millions of people who lived below the poverty level was a max-mum of 32.2 in 2021.  The number of millions of people who lived below the poverty level was a maximum of 31.1 In 2021.  The number of millions of people who lived below tho 
  
  Solution
y=0.07x^2 - 0.436x +38.968
vertex , x=.436/.07=3.1
y= 0.07(3.1)^2 -0.436(3.1)+ 38.968=38.3
Since a is positive here,so the vertex of the graph is minimum

