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Image of parabola with a maximum value at (1, 9), y-intercept at (0, 8) and x-intercepts at (2, 0) and (4, 0).
The graph above can be used to model a coin being tossed from a height of 8 feet in as a function of time in seconds. How long was the coin in the air?
Group of answer choices
4 seconds

1 second

9 seconds

6 seconds

Respuesta :

sqdancefan

Answer:

  (a)  4 seconds

Step-by-step explanation:

The given point (4, 0) on the parabola tells you the answer to the question: the coin was in the air 4 seconds before its height is 0. It is no longer in the air at that point.

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Additional comment

In order to match the rest of the problem statement, the first given x-intercept must be (-2, 0).

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