The express elevator in the Empire State Building in New York City travels nonstop from the ground floor to the top floor at a rate of 1.400 feet per minute.
The express elevator in the John Hancock Center in Chicago travels nonstop from the ground floor to the
observatory on the top floor at a rate represented by the equation y = 30x, where y is the height, in feet, and x is
the number of seconds.
Graph the two relationships on the grid below to compare the rates of the two elevators,
ELEVATOR RATES
1,000
900
800
700
Height (feet)
600
500
400
300
200
100
0
10
40
50
20
30
Time (seconds)
Which clevator travels at a faster rate?
Using the information from the graph, explain how you got your answer.