You are not logged in.
Pages: 1
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?
The greatest truth about the Rapture is not its timing but it's reality.
Dr. David Jeremiah
Online
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
Offline
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.
The greatest truth about the Rapture is not its timing but it's reality.
Dr. David Jeremiah
Online
Pages: 1