4. The following table indicates a number of households (in thousands) with a total income under $20,000 or over $100,000. 2014 2015 2017 2018 2019 Under $20,000 625.03 591.76 595.05 586.30 566.98 Over $100,000 1,248.48 1,409.19 1.538.54 1,635.93 1,803.71 a. Use Desmos, Excel or Curve Expert to help you model each of the two income segments with an appropriate function. (state the polynomial equation that models this data and yields a strong r - value). b. Which segment of the population is changing more quickly in 2015? c. Are the results in this table sufficient to show that poverty is decreasing? What additional information would you like to know in order to make your conclusions