A bucket is being filled with water. The graph below shows the water height (in mm) versus the time the water has been running (In seconds). Use the graph to answer the questions.

  (a) 6 mm

  (b) 6 mm/s

Step-by-step explanation:

The graph starts at (0, 0). That means the height after 1 second will be the amount of increase in 1 second. The graph shows you that height is 6 mm.

The water increases in height by 6 mm for each second it is running.

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The slope of the line is the ratio of the vertical change to the horizontal change. The answer to part (a) gives you the information you need:

  slope = vertical change / horizontal change

  slope = (6 mm)/(1 second) = 6 mm/second

The slope of the line is 6 mm/s. (Usually, units are not part of the expected answer.)

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step-by-step explanation:

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