Feb 19, 2021
Rational Functions
-- rational functions are quotients of polynomial functions
-- radical functions can be expressed as f(x) = p(x) / q(x), where p and q are polynomial functions and q(x) does not equal 0
-- the domain of a rational function is the set of all real numbers except the x-values that make the denominator zero
Example
f(x) = x^2 + 7x + 9 / x (x-2) (x+5)
p(x) is x^2 + 7x + 9
q(x) is x (x-2) (x+5)
-- the domain of the above example would be all real numbers excluding 0, 2, and -5
Patreon | Ko-fi