2.5 Homework Handout The table below give the average life expectancy (in years) of a person based on various years of birth. Let x represent the number of years since 1900. (x = 10 represents the year 1910) Year of Birth (x) 0 10 20 30 40 50 60 70 80 Life Expectancy (y) 47.3 50 54.1 59.7 62.9 68.2 69.7 70.8 73.7 90 75.4 a.) Graph the data below (be sure to scale and label your axes appropriately). Draw in an estimate of the best fit line. Find two points on the line and estimate the equation for the best fit line without a calculator. Equation of best fit line from graph (no calculator): y = _____________________________ SHOW WORK! b.) Graph a scatterplot of the data on your graphing calculator. Find the equation of the best fit line from your graphing calculator. Equation of best fit line from calculator: y = __________________________________ c.) Use the equation from your calculator to predict the life expectancy for someone born in 2010. d.) The independent variable is ______________. The dependent variable is______________ e.) Interpret the slope in terms of year of birth and life expectancy.