The domain is easiest. You simply need to find the fractions, and exclude any X that makes the denominator zero. So in this case, your domain is everything except X=7.
For range, you are trying to find out what are the possible answers. Usually the best way to do this is to try x=infinity, and x=negative infinity, which here gives you answers of infinity and negative infinity. Since the function is almost continuous, I think your range is any real number.
Answer:
16
Step-by-step explanation:
x=7-9
Given:
The given value is 
.
To find:
The multiplicative inverse of .
Solution:
We know that 
is the multiplicative interval of 
if 
.
Let be the multiplicative inverse of the given value . Then,
Divide both sides by .
Therefore, the multiplicative inverse of is 
. Hence the correct option is A.
The median for data A is greater.
the mean for data A is greater.
