Name some examples of scale factors that are equal to 1. What effect does a scale factor equal to 1 have on the dimensions of the image being scaled?

Which choice represents the sample space ,s for this event

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.

Which equation represents the function on the graph?