Question

Find the Domain and Range of (x^2-3X-4)/(X-4)

Answer 1

there is one value of x which cannot be in the domain because there is no value of the function for this x

hint: check out the denominator

Answer 2

So the Domain is 4?

Answer 3

no - the domain is all the possible values of x, 4 is not one of them because - as I see you know - it makes the denominator zero

Answer 4

the domain is all real x except 4

Answer 5

Oh that makes sense!