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

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

Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help!
Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations!

   

Question 160632: Find the domain of the function.
f%28x%29=4x%5E2%2B27x-7
Answer by Edwin McCravy(6936) 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%27%28%27%2C-infinity%2C+%27%2C%27%2C+infinity%2C%27%29%27%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%27%28%27%2C-infinity%2C+%27%2C%27%2C+infinity%2C%27%29%27%29

Edwin