Solve the problem. Joe is going to travel to Dallas. He lives 360 miles away and can average 60 miles per hour. Write a linear model that represents Joe's distance from Dallas, d(t), traveled as a function of time, t, in hours.

At time t = 0, Joe is 360 miles from Dallas. As he travels toward Dallas at 60 miles per hour, his remaining distance decreases by 60 miles each hour, so the model is d(t) = 360 − 60t. This is choice a, d(t) = 360 − 60t.

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