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Find the domain of each rational function.
1. f(x) = x/(sqrt{x - 4})
2. h(z) = (sqrt{z + 3})/(z - 2)
How is this done?
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Find the domain of each rational function.
How is this done?
Rationals have denominators w/ variables in them
It can have division by zero
Find domain by finding zeroes; domain is everything else
1. f(x) = x/(sqrt{x - 4})
Root cant have negatives
Denominator cant have zero
2. h(z) = (sqrt{z + 3})/(z - 2)
Denominator cant be zero
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FelizNYC wrote:Find the domain of each rational function.
How is this done?
Rationals have denominators w/ variables in them
It can have division by zero
Find domain by finding zeroes; domain is everything elseFelizNYC wrote:1. f(x) = x/(sqrt{x - 4})
Root cant have negatives
Denominator cant have zeroFelizNYC wrote:2. h(z) = (sqrt{z + 3})/(z - 2)
Denominator cant be zero
That was easy enough. Cool.
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