D Question 7 10 pts Given this scatter graph: 600 500 Sign Legibility Distance (feet) 400 300 15 25 35 45 55 65 75 85 Driver Age (years) a. Draw an estimate of the best fit line. b. Estimate the y-intercept from this line. c. Estimate the rate of change (slope). Use the slope formula picking points on the graph and write your answer as a fraction. d. Given the y-intercept and the slope, what is the estimated equation of the line? e. If a driver is 60 years old what is her sign legibility distance in feet