Lawrence knows his race car can accelerate from 0 miles per hour to 100 miles per hour in 60 seconds. He assumed the acceleration was constant and created the graph below. If this graph is accurate, what point on the graph would give him the speed of the race car after 30 seconds of accelerating? 100 60 Time (sec.) A (30, 50) B (30, 90) (50, 30) D (60, 100)

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