Answer:
D : All real numbers
R : (-∞,∞)
Step-by-step explanation:
When your x is in a set of absolute value sign, any number can work for x.
As with Domain, you can do the same with range. In this case, you can go from both positive infinity and negative infinity and you will always get a real number solution.
Avg speed 550 miles per hour
with the wind 1200 miles traveling
1200/(550+50) = 2 hours
Against the wind
1000/(550-50) = 2 hours
