Answer:
Emily filled an empty horse trough with water. The water level, in centimeters, is proportional to time elapsed, in minutes, since she began filling the trough. The graph shows this relationship. (above) (a) What rate does the point (8, 28) represent? Explain. (b) Write the unit rate for the situation in terms of centimeters/minute. Explain how you found the unit rate. (c) Explain how the points (8, 28) and (6, 21) show that the water level varies directly with the time elapsed. Emily filled an empty horse trough with water. The water level in the trough, measured in centimeters, increases as time elapses since she started filling it. The graph illustrates this relationship. (above) (a) What rate does the point (8, 28) represent? Explain. (b) Write the unit rate for the situation in terms of centimeters/minute. Explain how you found the unit rate. (c) Explain how the points (8, 28) and (6, 21) demonstrate that the water level varies directly with the time elapsed.
