gracie played with a remote-controlled car. at first, she made the car travel at a steady speed. then the car remained still while she changed the batteries in the remote. the time it took her to change the batteries was half the time she had played with the car up to that point. after changing the batteries, she made the car travel at a steady speed again, this time at a slower speed than before. the time the car traveled at the slower speed was about twice as long as the time it had traveled at the faster speed.

which sketch represents this situation?