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
