Write a function that can be used to model the scenario. Then explain what the slope and y-intercept mean in the context of the problem. The basement of a building is 40 feet below ground level. The building's elevator rises at a rate of 5 feet per second. You enter the elevator in the basement. Let t represent the number of seconds you are in the elevator and h(t) represent how high the elevator has risen (in feet) in t seconds.