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3 years ago

F(x) = x/ (x^2 + 4x - 21) how do i find the domain and range?

Mathematics

1 answer:

Igoryamba3 years ago

4 0

Answer:

Step-by-step explanation:

F(x) = x/ (x^2 + 4x - 21)

F(x)= x / (x - 3)(x + 7)

When x = 3 and x = -7 the denominator is zero so there are no values of the function corresponding to these values of x.

The domain is all Real x except x = -7 and x = 3.

The range is all values of f(x) except for those values when x = -7 and x = 3.

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Dmitrij [34]

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Lelechka [254]

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Step-by-step explanation:

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dedylja [7]

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sesenic [268]

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