When running a 100 meter race Landon reaches his maximum speed 7 seconds after the race started when he is 40 meters from the starting line. Landon runs at this max speed for the rest of the race. Landon is 68 meters from the starting line 11 seconds after the start of the race.
What is Landon's distance from the starting line x seconds after the race started (provided x ≥ 7)?
