Denver. After driving for 3 hours, she was only 100 miles east from Denver. Assume that Julia drove at a constant speed during the trip. Let be a function that gives Julia's position east from Denver (measured in miles) after having driven for hours. a) Determine a rule for the function. b) Interpret the meaning of (16) and then find its value if it exists. c) Interpret the meaning of (-141) and then find its value if it exists. d) Determine a rule for . e) Construct a graph for.