Aubrey and Charlie are driving to a city that is 120 mi from their house. They have already traveled 20 mi, and they are driving at a constant rate of 50 mi/h. Complete the function that models the distance they drive as a function of time. Then complete a reasonable domain for this situation.

Respuesta :

W0lf93
D=20+50t 120=20+50t 50t=100 t=2 hours Domain of t from t=-(2/5)hr to t=2hr. Since they already drove 20 miles. [-2/5,2]