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3 years ago

Which value is in the domain of f(x)?

Mathematics

1 answer:

Mariana [72]3 years ago

4 0

Answer: x = 4

Step-by-step explanation:

Here we have a piecewise function.

One piece works for values of x such that: -6 < x < 0

And the other piece works for values of x such that: 0 < x ≤ 4

Then the domain of this function is:

D = (-6, 0) U (0, 4]

Notice that, becuse we use the symbols ><, the values of x:

x = -6

x = 0

Do not belong to this domain.

While becuase we use the symbol ≤ in the right end, the value x = 4 does belong to the domain.

Then for the given options, the only value that belongs to the domain is the third option, x = 4.

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Step-by-step explanation:

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3 years ago

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Sergio039 [100]

Answer:

Step-by-step explanation:

This is your position equation:

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There's a whole lot of information in that equation, but what we are concerned about right now is the height of the ball after t = 3 seconds. If this is the position of the ball at any time t, we will sub in 3 for t to find out where the ball is at 3 seconds.

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4 years ago