Electricity Consumption The table below gives the retail sale of electricity (in billions of kilowatt-hours) for the residentia and commercial sectors of the United States. Residential (billions of kilowatt-hours) 2000 1,192 2003 1,276 Let :1: represent time (in years) with a: = 0 corresponding to 2000, and let 3; represent the corresponding residential sales. Find the quadratic regression equation for the data y=R(m)=am2+ba:+c with a rounded to the nearest hundredth (2 decimal places), b rounded to the nearest tenth (1 decimal place), and c rounded to the nearest integer. (See the R_egression page in the Getting Started module for ways of computing a regression model.) Question 5 2 pts Use this quadratic model above to answer this question. Predict the residential retail sale of electricity in 2027. Round to the nearest billion of kilowatt- hours. NOTE: You may get the wrong answer if you do not use the quadratic model with coefficients rounded as described above. billion of kilowatt-hours Question 6 2 pts Use this quadratic model above to answer this question. Predict the instantaneous rate of change in residential retail sale of electricity in 2023. Round to the nearest billion of kilowatt-hours. NOTE: You may get the wrong answer if you do not use the quadratic model with coefficients rounded as described above. billion of kilowatt-hours per year NOTE: Your answer might be negative