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a car travels along the highway to Yuma at a steady speed. when it begins, it is 400 miles from Yuma. after 7 hours, it is 50 miles from Yuma. which function describes the cars distance from Yuma ?

A. y-350x - 400
B. y=50x + 400
C. y= -50 + 400
D.y= -10x + 400