Subtract 3 hours, 50 minutes from 5 hours, 20 minutes.
2 hours, 20 minutes
1 hour, 40 minutes
1 hour, 30 minutes
2 hours, 30 minutes

Sample response: if the graph passes the horizontaline test, then the function is one to one. functions that are one to one have inverses that a therefore, the inverse is a hinction compare your response to the sample response above. what did you include in your explanation? a reference to the horizontal-line test d a statement that the function is one-to-one the conclusion that the inverse is a function done