Which situation is modeled by the graph?

a graph has time on the x-axis and height on the y-axis. the height increases, decreases to 0, increases, decreases to 0, and then increases.
the height of a jump rope being used over time
the height of an elevator over time
the height of a commuter airplane over time
the height of a hummingbird at a feeder

And explain how you got it so i can understand future problems : 3

During your cycling trip, you and your friends often stayed in hostels. the prices of these are listed below. hostel standard room (price per night) with breakfast (price per night) super sleep hostels £22.45 £28.65 normandy nights £18.55 £25 zzzola hostels £24.50 £30.99 belgian beds £11.20 £18.55 night-time rest days ? £33 what is the range in cost for a single night, including both standard room prices and with breakfast prices?

If abcde is reflected over the x-axis and then translated 3 units left, what are the new coordinates d?