The graph of y f x gives the speed limit y along a country road after traveling x miles a What are the highest and lowest speed limits along this stretch of road b Estimate the miles of road with a speed limit of 50 mph c Evaluate f 4 and f 8 a What are the maximum and minimum speed limits along this stretch of highway Maximum mph Minimum mph Type integers or decimals Speed Limit in mph Ay 80 70 60 50 40 30 20 10 0 0 O 4 12 8 Distance in miles 16 20