SOLUTION: Find the domain of the function. {{{f(x)=4x^2+27x-7}}}

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Question 160632: Find the domain of the function.
f%28x%29=4x%5E2%2B27x-7
Answer by Edwin McCravy(20056) About Me  (Show Source):
You can put this solution on YOUR website!
Find the domain of the function.
f%28x%29=4x%5E2%2B27x-7 

That is a polynomial function. Every polynomial function 
has domain "all real numbers", or

matrix%281%2C5%2C%22%28%22%2C-infinity%2C+%22%2C%22%2C+infinity%2C%22%29%22%29

Only when there is a square root (or other even root) 
containing a variable or a denominator containing a
variable will the domain ever be anything but "all
real numbers", which in interval notation is

matrix%281%2C5%2C%22%28%22%2C-infinity%2C+%22%2C%22%2C+infinity%2C%22%29%22%29

Edwin