The table is represented below
Part A: The y-intercept of the linear graph is when

. So, from our date, the y-intercept is at y=330
Part B: The rate of change is 55 and it represents the decrease of 55 miles for every hour travelled
Part C: The domain of the function will be

meaning the traveller will reach its destination after travelling

hours (assuming the traveller doesn't stop for break)