What is the domain of the function in the graph?
2 answers:
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Answer:
-4
Step-by-step explanation:
<em>Factor by the numbers from left to right.</em>
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<em>It changes to positive to negative.</em>
<em>-4</em>
<em>-4 is the correct answer.</em>
For this case we have the following variables:
t: time in seconds.
f (t): height as a function of time.
By the time Grace reaches the pool, the height is equal to zero.
We have the following table:
Time (t) (in seconds) Height f(t) (in meters)
1 25
2 20
3 15
4 0
We observe that the height is equal to zero after 4 seconds.
Equivalently:
Answer:
the following represents the x-intercept of f(t):
Grace reaches the swimming pool after 4 seconds