In the intervals 2 ≤ t ≤ 6 and 14 ≤ t ≤ 15, bee was flying at a constant height.
From the graph attached, height of the bee is represented on y-axis and time on the x-axis,
A straight line parallel to x-axis (time) will represent the constant value of the the height of the bee.
From t = 2 sec to t = 6 sec and from t = 14 sec to t = 15 sec bee was at the constant height y = 1 feet and 2 feet respectively.
Therefore, in the intervals 2 ≤ t ≤ 6 and 14 ≤ t ≤ 15, bee was flying at a constant height.
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