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Which of the following represents the range of the graph of f(x) below

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. how many hours after the truck's departure will the two meet?

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?