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Atmospheric air pressure is measured in millibars. Suppose the atmospheric pressure of a weather station, P, in millibars between noon and 9 p.m.
It is represented by the function P(t) = −1.1t + 1,015.7 where t is the number of hours after noon. What is the interpretation of the y-intercept for P(t)
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1 year ago
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8 months ago
The y-intercept of the function P(t) represents the atmospheric pressure at the starting point, which is at noon. In this case, the y-intercept of the equation P(t) = -1.1t + 1,015.7 is 1,015.7.
Therefore, the interpretation of the y-intercept is that at noon, the atmospheric pressure at the weather station is 1,015.7 millibars.