How do you find the domain and range of #f(x) = x+2#?
The domain of a function are those values of
If we take your example into consideration->
Here, we can let
Therefore Domain is R and Range is R.
The same cannot be said for other functions.
If there is a negative number inside the root the function will not be defined. So we apply a condition-->
THIS IS THE DOMAIN. The value of
Now for the range, we'll put
Remember the value of
So when we put any other number (bigger than
we will get values ranging till Infinity.
Therefore, the Range is