Domain and range of f(x)=1/x+1?

Question

coconutjj · Answer

First find all the values x CANNOT be...

solomonzelman · Answer

the denominator $\ne0$, correct?

solomonzelman · Answer

so the eliminated value (otherwise known as the "restriction") is the value of x that makes the denominator $=0$.

anonymous · Answer

sooo the domain is 0 or no?

solomonzelman · Answer

the domain of the function, is all x-values for which the function is defined.
(all x-values that you can plug in into the function, without getting an undefined output)

there is only 1 x-value that will give you an undefined output. this x-value is the value that makes the denominator=0 (the denominator is the "x+1" peace)

solomonzelman · Answer

so set the denominator=0, and solve for x, to find that one value that is not in your domain

anonymous · Answer

oh okay. Thanks