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The height (in centimeters) of a candle is a linear function of the amount of time (in hours) it has been burning. When graphed, the function gives a line with a slope of -0.6. See the figure below. Suppose that the height of the candle after 12 hours is 17.8 centimeters. What will be the height of the candle after 19 hours?

Respuesta :

sqdancefan

Answer:

  13.6 cm

Step-by-step explanation:

The slope of -0.6 tells you the change in height in 7 hours will be ...

  (-0.6 cm/h) · (7 h) = -4.2 cm

This is added to the candle height after 12 hours, so the height after 19 hours is ...

  17.8 cm -4.2 cm = 13.6 cm

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