Question

I've been stuck on these domain questions some please help

Answer 1

C

Explanation:

The domain of a function fraction includes all real numbers x except those which make the denominator 0. So to find the domain equate the denominator to 0 and solve for x then exclude the values.

x-5=0

x=5

Therefore all values excluding 5

Answer x≠5

Answer 2

It would be C

Explanation:

So first off you can find the domain by find the zeros of the equation. This means setting the denominator equal to 0. x-5=0 therefore x =5 so when you plug in 5 to the equation you get 0 on the bottom which makes the equation undefined. Therefore the domain is you can plug in any number except for 5 because 5 makes the equation undefined.