What’s the difference between an image and a preimage

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.

The quadratic function h(t)=-16.1t^2+150 choose the graph representation

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