1/x is undefined at x=0 (because 1/0 is dividing by zero). Learn vocabulary, terms, and more with flashcards, games, and other study tools. Here are some examples illustrating how to ask for the domain and range. range is the resulting possible values for f(x) certain values of x could be excluded for example: f(x) = 1/(x-a) if x = a then x-a = 0 and f(a) = 1/0 which is not defined so x = a is excluded. Domain of the above function is all real values of 'x' for which 'y' is defined. Posted In Alberta, Math 20-1 Domain and range » Tips for entering queries. It means "x in R" and R (when written in blackboard bold) ⦠{x cannot equal -2, 2, xer} b. Free Math Help. I did my undergrad in math at a top 25 university, and graduated with around a 3.96 (Please don't take this as a flex, I'm just trying to give a feel for the type of program I had!!). By using this website, you agree to our Cookie Policy. This site uses necessary cookies to make the website work and functional cookies that enable us to remember choices you make (like sign-in credentials) so we can provide a more personalized experience when browsing this website. Enter your queries using plain English. A mathematical symbol is a figure or a combination of figures that is used to represent a mathematical object, an action on mathematical objects, a relation between mathematical objects, or for structuring the other symbols that occur in a formula.As formulas are entirely constituted with symbols of various types, many symbols are needed for expressing all mathematics. In its simplest form the domain is the set of all the values that go into a function. The function must work for all values we give it, so it is up to us to make sure we get the domain correct! In this case, there is no ⦠So the domain is all real numbers except -2 and -3. if f(x) = x2+4x+4, then the }domain of y= 1/ f(x) is a. For a moment, I wasn't sure what you meant. {x cannot equ. domain is the possible values for x in the equation. Oh! Find the Domain and Range f(x)=x^2-2x-6 The domain of the expression is all real numbers except where the expression is undefined. To avoid ambiguous queries, make sure to use parentheses where necessary. domain of log(x) (x^2+1)/(x^2-1) domain; find the domain of 1/(e^(1/x)-1) function domain: square root of cos(x) Example: The domain of 1/x . Obviously, y cannot equal 2, nor can it be less than 2. Intermediate/Advanced Algebra Stating domain and range from functions? Start studying Math - domain and range. The E is not the letter E, but the Greek letter Epsilon. domain of f^-1(x) is xER and range is xER. Free functions domain calculator - find functions domain step-by-step This website uses cookies to ensure you get the best experience. If there is any value of 'x' for which 'y' is undefined, we have to exclude that particular value from the set of domain. ... XER} R = {Y|YER} ... x = - 2 or - 3, which would make the denominator zero and render the function undefined in the real numbers.